Saxon genitive

In 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.

Nouns, noun phrases and some pronouns generally form a possessive with the suffix -'s (or in some cases just by adding an apostrophe to an existing -s). This form is sometimes called the Saxon genitive, reflecting the suffix's derivation from a genitive case ending in Old English, or Anglo-Saxon.Personal pronouns, however, have irregular possessives, and most of them have different forms for possessive determiners and possessive pronouns, such as my and mine or your and yours.

Possessives are one of the means by which genitive constructions are formed in modern English, the other principal one being the use of the preposition of. It is sometimes stated that the possessives represent a grammatical case, called the genitive or possessive case, though some linguists do not accept this view, regarding the -'s ending, variously, as a phrasal affix, an edge affix or a clitic, rather than as a case ending.

The possessive form of an English noun, or more generally a noun phrase, is made by suffixing a morpheme which is represented orthographically as 's (the letter s preceded by an apostrophe), and is pronounced in the same way as the regular English plural ending -(e)s: namely as /ᵻz/ when following a sibilant sound (/s/, /z/, /ʃ/, /ʒ/, /tʃ/ or /dʒ/), as /s/ when following any other voiceless consonant (/p/, /t/, /k/, /f/ or /θ/), and as /z/ otherwise. For example:

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