POSSESSIVE ADJECTIVES
Possessive adjectives show ownership or possession. They agree in gender (feminine/masculine) and number (singular/plural) with the noun they introduce.
Possessive articles, like all articles, must agree with the noun they modify. If the noun is feminine, the possessive article must be feminine, too.
In the following example, the feminine noun famille requires a feminine form – sa. Note that sa has three potential translations in English: 'his,' 'her,' or 'its.'
So, how do you know which meaning is intended? Context! Since the following example sentence refers to Juan, we know that sa means 'his.'
Do not forget to make the liaison between the plural forms of the possessive determiners and words that begin with a vowel sound. Ma, ta, sa become mon, ton, son in front of feminine nouns beginning with a vowel sound.
Martin continues his introductions: