English possessiveIn English, possessive words or phrases exist for nouns and most pronouns, as well as some noun phrases. These can play the roles of determiners (also called possessive adjectives when corresponding to a pronoun) or of nouns. For nouns, noun phrases, and some pronouns, the possessive is generally formed with the suffix -s, but in some cases just with the addition of an apostrophe to an existing s. This form is sometimes called the Saxon genitive, reflecting the suffix's derivation from Old English.
TheyIn Modern English, they is a third-person pronoun relating to a grammatical subject. In Standard Modern English, they has five distinct word forms: they: the nominative (subjective) form them: the accusative (objective, called the 'oblique'.) and a non-standard determinative form. their: the dependent genitive (possessive) form theirs: independent genitive form themselves: prototypical reflexive form themself: derivative reflexive form (nonstandard; now chiefly used instead of "himself or herself" as a reflexive epicenity for they in pronominal reference to a singular referent) Old English had a single third-person pronoun hē, which had both singular and plural forms, and they wasn't among them.
Possessive determinerPossessive determiners are determiners which express possession. Some traditional grammars of English refer to them as possessive adjectives, though they do not have the same syntactic distribution as bona fide adjectives. Examples in English include possessive forms of the personal pronouns, namely: my, your, his, her, its, our and their, but excluding those forms such as mine, yours, ours, and theirs that are used as possessive pronouns but not as determiners.
PossessiveA possessive or ktetic form (abbreviated or ; from possessivus; κτητικός) is a word or grammatical construction indicating a relationship of possession in a broad sense. This can include strict ownership, or a number of other types of relation to a greater or lesser degree analogous to it. Most European languages feature possessive forms associated with personal pronouns, like the English my, mine, your, yours, his and so on. There are two main ways in which these can be used (and a variety of terminologies for each): Together with a noun, as in my car, your sisters, his boss.
PronounIn linguistics and grammar, a pronoun (abbreviated ) is a word or a group of words that one may substitute for a noun or noun phrase. Pronouns have traditionally been regarded as one of the parts of speech, but some modern theorists would not consider them to form a single class, in view of the variety of functions they perform cross-linguistically. An example of a pronoun is "you", which can be either singular or plural. Subtypes include personal and possessive pronouns, reflexive and reciprocal pronouns, demonstrative pronouns, relative and interrogative pronouns, and indefinite pronouns.