Avoir is used in the impersonal expression il y a, which means either 'there is' or 'there are.' Il y a is used to express the existence of a person or a thing, or to make a list or inventory of persons or things. The indefinite article (un, une, des) is usually used with il y a.
The negative of il y a is il n'y a pas. The indefinite article (un une, des) becomes de or d' after this negative expression. This corresponds to the English word 'any.'
avoir besoin de to need
avoir envie de to want (to do something),to feel like (doing something)
avoir l'intention de to intend to (do something)
avoir faim to be hungry
avoir soif to be thirsty
avoir chaud to be hot
avoir froid to be cold
avoir honte (de) to be ashamed (of)
avoir mal (à la tête, à la gorge, aux yeux) to hurt (to have a headache, to have a sore throat, to have sore eyes)
avoir raison to be right
avoir tort to be wrong
avoir sommeil to be sleepy