uses of has have had

Has is used with he,she,it,singular subject in present perfect tense and also to show present possession. Ex:- She has eaten. Ram has two pens. Have is used with I,we,you,they,plural subjects in present perfect tense and also to show present possession. Ex:- They have called her. We have a new watch. Had is used in past perfect tense and also to show past possession. Ex:- I had gone there. They had a car.

it is three tence types

Has use is for Singular , He ,She,It, Have use is for we,you , plural Had is 2nd form of have