Prepositional pronoun
A prepositional pronoun is a special form of a personal pronoun that is used as the object of a preposition.
English does not have a distinct grammatical case that relates solely to prepositional pronouns. Certain genitive pronouns both complement prepositions and also may function as subjects. Additionally, object pronouns may complement either prepositions or transitive verbs. In some other languages, a special set of pronouns is required in prepositional contexts.
Inflectional forms in Romance
In the Romance languages, prepositions combine with stressed pronominal forms that are distinct from the unstressed clitic pronouns used with verbs. In French, prepositions combine with disjunctive pronouns, which are also found in other syntactic contexts. In Portuguese, Spanish, Italian, and Romanian, prepositions generally combine with pronouns that are identical in form to nominative pronouns, but there are unique prepositional forms for the 1st and 2nd person singular. This is also true in Catalan, but the 2nd person singular prepositional form is identical to the nominative. Portuguese and Spanish also have unique forms for 1st, 2nd and 3rd person reflexive when they follow the preposition com/con. That holds true for both singular and plural pronouns for Portuguese, but only for singular in Spanish.Consider the Portuguese sentences below:
The verbs ver "to see" and culpar "to blame" in the first two sentences are non-prepositional, so they are accompanied by the normal object pronoun te "you". In the third sentence, the verb ansiar "to long " is prepositional, so its object, which follows the preposition, takes the form ti.