Avoir = to have
J'ai Nous avons
Tu as Vous avez
Il/Elle/On a Ils/Elles ont
In French, you talk about having certain feelings. In English, you say that you are + feelings.
Ex "I am cold" in French is translated as "I have cold"
You also use avoir to give your age.
J'ai onze ans. = I am 11 years old.
avoir... ans to be... years old
avoir chaud = to be hot
avoir froid = to be cold
avoir sommeil = to be sleepy
avoir raison = to be right
avoir tort = to be wrong
avoir l'air = to look like, to seem
avoir besoin (de) = to need
avoir envie (de) = to feel like
avoir honte (de) = to be ashamed (of)
avoir peur (de) = to be afraid (of)
avoir de la chance = to be lucky