The initial idioms of the letter H

have it in for (someone)	have it off (with someone)
have it out for (someone)	have it out (with someone)
had its day, has	have no stomach for (something)
have no time for (someone or something)	not have anything on (someone or something)
have nothing to do	had one's fill
have other fish to fry	had rather
had rather do	have seen (one's) day
have skin in the game	have had the biscuit
hadn't oughta	hag
haggle	haggle about
haggle over	hail as
hail damage	hail from
hail down	hail-fellow-well-met
hail	hair
hair and hide	hair of the dog that bit