22 Unit 3 Possessive adjectives and pronouns 14 The forms of the possessive adjectives (‘my’, ‘your’, etc.) are as follows: Note that when  santo  means ‘holy’ or ‘blessed’, it is regular:  il santo padre (the Holy Father),  una santa donna  (a holy woman). * Note that the masculine plural forms  miei ,  tuoi  and  suoi  are irregular. ** Note that  loro  is invariable and does not change. Possessive adjectives are always used before the noun they refer to. Unlike in English, they are always preceded by the article, and they must agree with the owned object, not with the owner: 15 When  mio ,  tuo ,  suo ,  nostro  and  vostro  ( not loro ) are used with a noun denoting family relationship (e.g.  fratello  (brother),  sorella  (sister),  padre (father),  madre  (mother)) in the singular they are  not  preceded by the de fi nite article: Masculine singular mio tuo suo nostro vostro loro** Feminine singular mia tua sua nostra vostra loro** Masculine plural miei* tuoi* suoi* nostri vostri loro** Feminine plural mie tue sue nostre vostre loro** my your his/her/its our your their Santo Stefano San Francesco San Pietro Saint Stephen Saint Francis Saint Peter Sant’Antonio Sant’Anna Santa Caterina Saint Anthony Saint Anne Saint Catherine Luisa e  i  suo i  fratelli  [mp] Carlo e  le  su e  sorelle  [fp] Livia e  il  su o  amico  [ms] Ettore e  la  su a  amica  [fs] la  mi a  lettera  [fs] i  tu oi  libri  [mp] la  nostr a  scuola  [fs] le  vostr e  idee  [fp] la  loro stanza  [fs] i  loro genitori  [mp] Luisa and her brothers Carlo and his sisters Livia and her (male) friend Ettore and his (female) friend my letter your books our school your ideas their room their parents