Tamil grammar
Much of Tamil grammar is extensively described in the oldest available grammar book for Tamil, the Tolkāppiyam. Modern Tamil writing is largely based on the 13th century grammar Naṉṉūl, which restated and clarified the rules of the Tolkāppiyam with some modifications.
Parts of Tamil grammar
Traditional Tamil grammar consists of five parts, namely eḻuttu, sol, poruḷ, yāppu and aṇi. Of these, the last two are mostly applicable in poetry. The following table gives additional information about these parts.| Tamil name | Meaning | Main grammar books |
| eḻuttu | letter | Tolkāppiyam, Nannūl |
| sol | word | Tolkāppiyam, Nannūl |
| poruḷ | content | Tolkāppiyam |
| yāppu | compilation | Yāpparuṅkalakkārikai |
| aṇi | decoration | Taṇṭiyalaṅkāram |
Eḻuttu defines and describes the letters of the Tamil alphabet and their classification. It describes the nature of phonemes and their changes with respect to different conditions and locations in the text.
Sol defines the types of the words based on their meaning and the origin. It defines the gender, number, cases, tenses, classes, harmony etc. This chapter also provides rules for compounding the words.
Porul defines the contents of poetry. It gives guidance on which topic to choose for poetry based on certain conditions like the nature of the land or time or the people. It gives a distinction between Agam and Puram.
Yāppu defines rules for composing Traditional poetry. It defines the basic building block Asai and describes how asai should be joined to form a sīr, joining sīr for an adi.
Aṇi defines techniques used for comparing, praising and criticizing the taken topics.
Letters
The script of Tamil Language consists of 247 letters. The script falls under the category Abugida, in which consonant-vowel sequences are written as a unit. The grammar classifies the letters into two major categories.- Prime Letters – முதலெழுத்து
- Dependent Letters – சார்பெழுத்து
Prime letters
12 vowels and 18 consonants are classified as the prime letters.- The vowels : அ, ஆ, இ, ஈ, உ, ஊ, எ, ஏ, ஐ, ஒ, ஓ, ஔ
- The consonants : க், ங், ச், ஞ், ட், ண், த், ந், ப், ம், ய், ர், ல், வ், ழ், ள், ற், ன்
The vowels are categorized based on the length, as short and long. The short vowels are pronounced for a duration 1 unit, while the long vowels take two units. Based on the duration of the sound, the vowels form 5 pairs. The other two vowels ஐ and ஔ are diphthongs formed by joining the letters அ+இ and அ+உ. Since these two are a combination two short letters, their pronunciation takes 2 units of time, that is they fall under nedil category. ஐ and ஔ can also be spelt அய் and அவ். This form is known as eḻuttuppōli and is generally not recommended.
The consonants are categorised into three groups, வல்லினம் , மெல்லினம் and இடையினம் , based on the nature of the sound.
| valliṉam | melliṉam | iṭaiyiṉam |
| க் k | ங் ṅ | ய் y |
| ச் s | ஞ் ñ | ர் r |
| ட் ṭ | ண் ṇ | ல் l |
| த் t | ந் n | வ் v |
| ப் p | ம் m | ழ் ḻ |
| ற் ṟ | ன் ṉ | ள் ḷ |
From the 30 prime letters, the dependent letters are formed.
Dependent letters
Tamil grammar defines 10 categories of Dependent letters.- Alphasyllabic letters உயிர்மெய் எழுத்து
- Aidam ஆய்த எழுத்து
- Elongated vowel உயிரளபெடை
- Elongated consonant ஒற்றளபெடை
- Shortened u குற்றியலுகரம்
- Shortened i குற்றியலிகரம்
- Shortened ai ஐகாரக் குறுக்கம்
- Shortened au ஔகாரக் குறுக்கம்
- Shortened m மகரக்குறுக்கம்
- Shortened Aidam ஆய்தக்குறுக்கம்
| Combination | Uyirmei form | ISO 15919 | IPA |
| க் + அ | க | ||
| க் + ஆ | கா | ||
| க் + இ | கி | ||
| க் + ஈ | கீ | ||
| க் + உ | கு | , | |
| க் + ஊ | கூ | ||
| க் + எ | கெ | ||
| க் + ஏ | கே | ||
| க் + ஐ | கை | ||
| க் + ஒ | கொ | ||
| க் + ஓ | கோ | ||
| க் + ஔ | கௌ |
Aidam is also known as தனிநிலை . The aidam is always preceded by a single short letter and followed by a hard alphasyllabic letter. It takes half unit time for pronunciation.
and are formed by elongating the duration of pronunciation of a letter to satisfy certain grammatical rules while composing poetry. In Uyiralapetai, the intrinsic vowel of the letter that is elongated is written next to it, to indicate that the letter now is pronounced for 3 units of time.
In Kutriyalukaram, the duration of the short 'u' letters of vallinam category is reduced to half units, when the letter is found at the end of the word, preceded by multiple letters or a single nedil letter.
If a word with kutriyalikaram is followed by a word with 'ய' as the first letter, the u sound is corrupted to i sound and takes a half unit of time for pronunciation.
In Aikarakurukkam and Aukarakurukkam, the duration of the letters ஐ and ஔ are reduced to 1 1/2 units if they are the first letters of the word. If situated elsewhere it is reduced to 1 unit.
Vanjiyar
In Tamil, a single letter standing alone or multiple letters combined form a word. Tamil is an agglutinative language – words consist of a lexical root to which one or more affixes are attached.Most Tamil affixes are suffixes. These can be derivational suffixes, which either change the part of speech of the word or its meaning, or inflectional suffixes, which mark categories such as person, number, mood, tense, etc. There is no absolute limit on the length and extent of agglutination, which can lead to long words with a large number of suffixes, which would require several words or a sentence in English. To give an example, the word means "for the sake of those who cannot go", and consists of the following morphemes:
Words formed as a result of the agglutinative process are often difficult to translate. Today Translations, a British translation service, ranks the Tamil word செல்லாதிருப்பவர் as number 8 in their The Most Untranslatable Word In The World list.
In Tamil, words are classified into four categories namely,
- Nouns Peyarsol
- Verbs Vinaisol
- Particles and Pre-/Postpositions Idaisol
- Adjective and Adverbs Urisol
Nouns
Noun
Nouns are inflected based on number and grammatical case, of which there are 9: nominative case, accusative case, dative case, instrumental case, sociative case, locative case, ablative case, genitive case, and vocative case. If the plural is used, the noun is inflected by suffixing the noun stem with first the plural marker -kaḷ, and then with the case suffix, if any. Otherwise, if the singular is used, the noun is instead inflected by suffixing either the noun stem with the case suffix, or the oblique stem with the case suffix. An optional euphonic increment -iṉ or -aṉ can occur before the case suffix.| case | suffix |
| nominative | -∅ |
| accusative | -ai |
| instrumental | -āl, - koṇṭu |
| sociative | -ōṭu, -uṭaṉ |
| dative | -ku, -iṉ poruṭṭu, -iṉ nimittam |
| benefactive | -kkāka |
| ablative | -il iruntu , -iṭam iruntu , -iṉiṉṟu |
| genitive | -atu, -uṭaiya |
| locative | -il , -iṭam |
| vocative | -ē |
Nominative case
The nominative case is used for the subject of an intransitive verb, the agent of a transitive verb, the predicate of a nominal sentence, and subject and object complements. It is the base form of the noun with no suffix.It can also be used to mark the direct object when it is indefinite and irrational.
Accusative case
The accusative case marks the direct object of a transitive verb. It is marked by the suffix -ai. It is required when the direct object is rational. When used with irrational nouns, the accusative must be used when the direct object is definite. When an irrational direct object is indefinite, the nominative is used instead, unless there is an explicit indefinite determiner present, in which case either the nominative or accusative may be used.Dative case
The dative case is marked with -ukku, -kku, or -ku. It expresses an indirect object, a goal of motion, a purpose, or an experiencer.Instrumental case
The instrumental case is shown with -āl. It marks the instrument, means, source, or reason by which an action occurs.It also marks the agent in passive constructions.
Sociative case
The sociative case is marked with either -ōṭu or -uṭaṉ. It shows that the noun it modifies is involved in the action of the sentence.Locative case
The locative case is marked with either -il or -iṭam. -il occurs with inanimate nouns and plural animate nouns, while iṭam occurs with animate nouns in both numbers. It shows location.Ablative case
The ablative case is expressed through the suffix -iliruntu added onto the locative of a noun. It marks motion away from something.Oblique stems
The oblique stem of a noun is used before adding case suffixes, as a modifier in genitive function before a head noun, as the first element of a compound, and before postpositions.Genders and number
The grammatical gender of Tamil nouns corresponds to their natural sex. Nouns in Tamil have two numbers, singular and plural.Grammatical gender, known as பா in Tamil, encompasses both the concepts of gender and number, thus is highly predictable. Masculine and feminine genders are only applicable to "higher class" nouns. Even though the genders of animals are marked in a sentence, grammatically they are handled as a neuter noun. Thus there are five genders in Tamil, namely, masculine singular, feminine singular, high-class plural, lower-class singular, lower-class plural. These are summarized in the table below.
Pronouns
Demonstratives and interrogatives
| இவன் ivan | he, who is near to the 1st person | near deixis, demonstrative particle |
| உவன் uvan | he, who is near to the 2nd person | distant deixis, demonstrative particle |
| அவன் avan | he, who is near to the 3rd person or someone not present | distant deixis, demonstrative particle |
| எவன் evan | who? | interrogative particle |
In Tamil, the demonstrative particles are a-, i-, and u- . These demonstrative particles display deictic properties. i- is a near deixis form, which demonstrates the objects around/near the first person, while a- has distant deixis form, which demonstrates things near the 3rd person. u- was used to indicate objects near the second person, but has gradually fallen out of use. In modern Tamil i- indicates objects nearer and a- indicates objects in a distance. Using these particles demonstrative pronouns are derived. The same set of pronouns is also used as personal pronouns in 3rd person. e.g. avan, atu, anta
e- and yā- யா are the two important interrogative particles in Tamil. e- is used for deriving the interrogative pronouns. e.g. evaṉ, enta, ''etaṟku''
Personal pronouns
First person plural pronouns in Tamil distinguish between inclusive and exclusive we. In Tamil, plural terminators are used for honorific addressing. It could be noted in both 2nd and 3rd persons. There are unique personal pronouns available for first and second persons while demonstrative pronouns are used in place of personal pronouns as well.Verbs
Like Tamil nouns, Tamil verbs are also inflected through the use of suffixes. A typical Tamil verb form will have a number of suffixes, which show person, number, mood, tense and voice, as is shown by the following example aḻintukkoṇṭiruntēṉ " was being destroyed":| Morphemes | aḻi | -ntu | koṇṭiru | -nt- | -ēn |
| Functions | root | tense-voice marker | aspect marker | tense marker | person-number-gender marker |
| Functions | "to be destroyed" | affective voice; past | progressive aspect | past tense | first person, singular |
Person and number are indicated by suffixing the oblique case of the relevant pronoun. The suffixes to indicate tenses and voice are formed from grammatical particles, which are added to the stem. The chart below outlines the most common set of suffixes used to conjugate for person and tense, but different groups of Tamil verbs may use other sets of suffixes or have irregularities.
| Class | Root | Past | Present | Future |
| I | cey "to do" | -t- | -kiṟ1- | -v- |
| II | mīḷ "to be redeemed" | -ṇṭ- | -kiṟ- | -v- |
| III | kol "to kill" | -ṉṟ- | -kiṟ- | -v- |
| IV | vaḷar "to grow " | -nt- | -kiṟ- | -v- |
| V | pāṭu "to sing" | -i- | -kiṟ- | -v- |
| VI | pōṭu "to put" | -ṭṭ- | -kiṟ- | -v- |
| VII | uṇ "to eat" | -ṭ- | -kiṟ- | -p- |
| VIII | eṉ "to say" | -ṟ- | -kiṟ- | -p- |
| IX | kēḷ "to hear, listen, ask" | -ṭṭ- | -ṭkiṟ- | -ṭp- |
| X | vil "to sell" | -ṟṟ- | -ṟkiṟ- | -ṟp- |
| XI | vaḷar "to grow " | -tt- | -kkiṟ- | -pp- |
| XII | iru "to be" | -nt- | -kkiṟ- | -pp- |
| XIII | cā "to die" | – | – | – |
1The infix -kiṟ- is a shortening of the infix -kiṉṟ-, which is also sometimes used.
1Class X verbs take -iṟṟu added directly to the root. In the future, -um is added directly to the root of verbs in Classes I through VIII, whereas -um replaces the -iṟ- in the present stem to form the future of verbs in Classes IX through XIII.
2This suffix takes an irregular present in -kiṉṟ-/-kkiṉṟ- before it. The -um future can be used in the plural, as well.
Tamil has three simple tenses – past, present, and future – indicated by simple suffixes, and a series of perfects, indicated by compound suffixes. Mood is implicit in Tamil, and is normally reflected by the same morphemes which mark tense categories. These signal whether the happening spoken of in the verb is unreal, possible, potential, or real. Tamil verbs also mark evidentiality, through the addition of the hearsay clitic .
Tamil has two voices. The first - used in the example above - indicates that the subject of the sentence undergoes or is the object of the action named by the verb stem, and the second indicates that the subject of the sentence directs the action referred to by the verb stem. These voices are not equivalent to the notions of transitivity or causation, or to the active-passive or reflexive-nonreflexive division of voices found in Indo-European languages.
Auxiliaries
Tamil has no articles. Definiteness and indefiniteness are indicated either by context or by special grammatical devices, such as using the number "one" as an indefinite article. In the first person plural, Tamil makes a distinction between inclusive pronouns that include the listener and exclusive pronouns that do not. Tamil does not distinguish between adjectives and adverbs – both fall under the category uriccol. Conjunctions are called iṭaiccol.Verb auxiliaries are used to indicate attitude, a grammatical category which shows the state of mind of the speaker, and his attitude about the event spoken of in the verb. Common attitudes include pejorative opinion, antipathy, relief felt at the conclusion of an unpleasant event or period, and unhappiness at or apprehension about the eventual result of a past or continuing event.
Sentence structure
Except in poetry, the subject precedes the object, and the verb concludes the sentence. In a standard sentence, therefore, the order is usually subject–object–verb, but object–subject–verb is also common.Tamil is a null-subject language. Not all Tamil sentences have subjects, verbs, and objects. It is possible to construct valid sentences that have only a verb, such as muṭintuviṭṭatu, or only a subject and object, such as atu eṉ vīṭu.
The elements that are present, however, must follow the SOV order. Tamil does not have an equivalent for the existential verb to be; it is included in the translations only to convey the meaning. The negative existential verb, to be not, however, does exist in the form of illai and goes at the end of the sentence. The verb to have in the meaning "to possess" is not translated directly, either. To say "I have a horse" in Tamil, a construction equivalent to "There is a horse to me" or "There exists a horse to me", is used.
Tamil lacks relative pronouns, but their meaning is conveyed by relative participle constructions, built using agglutination. For example, the English sentence "Call the boy who learned the lesson" is said in Tamil like "That-lesson-learned-boy call".
Example
A sample passage in Tamil script with transliteration.| Word | Translation | Morphemes | Part of speech | Person, Gender, Tense | Case | Number | Remarks |
| āciriyar | teacher | āciriyar | noun | n/a, gender-neutral, n/a | nominative | honorific plural indicated by suffix ar | The feminine gender āciriyai can be used here too; the masculine gender āciriyaṉ is rarely used, considering the honored position of the teacher |
| vakuppukkuḷ | inside the class room | vakuppu+-kk- +uL | adverb | n/a | locative | n/a | Sandhi rules in Tamil require euphonic changes during agglutination |
| nuḻaintār | entered | nuḻaintār | verb | third, gender-neutral, past | honorific plural | In an honorific context, the masculine and feminine equivalents nuḻaintāṉ and nuḻaintāḷ are replaced by the collective nuḻaintār | |
| avar | He | avar | pronoun | third, gender-neutral, n/a | nominative | honorific plural indicated by suffix ar | In honorific contexts, the masculine and feminine forms avaṉ and avaḷ are not used |
| uḷḷē | inside | uḷḷē | adverb | n/a | n/a | ||
| nuḻaintavuṭaṉ | upon entering | nuḻainta + uṭaṉ | adverb | n/a | n/a | Sandhi rules require a v to be inserted between an end-vowel and a beginning-u during agglutination. | |
| māṇavarkaḷ | students | māṇavarkaḷ | collective noun | n/a, masculine, often used with gender-neutral connotation, n/a | nominative | plural indicated by suffix kaḷ | |
| eḻuntaṉar | got up | eḻuntaṉar | verb | third, gender-neutral, past | plural | ||
| Vaḷavaṉ | VaLavan | Vaḷavaṉ | proper noun | n/a, masculine, usually indicated by suffix aṉ, n/a | nominative | singular | |
| maṭṭum | only | maṭṭum | adverb | n/a | n/a | ||
| taṉ | his own | taṉ | pronoun | n/a, gender-neutral, n/a | singular | ||
| arukil | near | aruku + il | adverb | n/a | locative | n/a | The postposition il indicates the locative case |
| niṉṟu koṇṭirunta | standing | niṉṟu + koṇṭu + irunta | adverb | n/a | n/a | The verb has been morphed into an adverb by the incompleteness due to the terminal a | |
| māṇavi | student | māṇavi | pronoun | n/a, feminine, n/a | singular | ||
| Kaṉimoḻiyuṭaṉ | with Kaṉimoḻi | Kaṉimoḻi + uṭaṉ | Proper noun | n/a | comitative | n/a | The name Kaṉimoḻi literally means sweet language |
| pēcik koṇṭiruntāṉ | was talking | pēci + koṇṭu +iruntāṉ | verb | third, masculine, past continuous | singular | Continuousness indicated by the incompleteness brought by koṇṭu | |
| nāṉ | I | nāṉ | pronoun | first person, gender-neutral, n/a | nominative | singular | |
| avaṉai | him | avanai | pronoun | third, masculine, n/a | accusative | singular | The postposition ai indicates accusative case |
| eccarittēṉ | cautioned | eccarittēṉ | verb | first, indicated by suffix -ēn, gender-neutral, past | singular, plural would be indicated by substituting -ēn with -ōm |