I have to go.

She has a nice car.

He has a nice umbrella.

You can have it.

We have a party tonite.

I had this since 1983.

She had some conversation with him.

We had lots of fun there.

had is for past tense n has n have for present tense.

Has is for he,she,it n have for all plura.

Please let me know where i'm wrong.

Thank You.
More comon: we're having a party tonight

I've had this since...

...a conversation

and and

have for all plural, plus you and I

I'm wrong