I have + (noun)

By using the words 'I have' you are informing someone of
something you have possession of or have acquired.

"I have a cat."

"I have a nice car."

"I have a house."

"I have a computer."

"I have a headache."

You may hear the words 'cannot' and 'won't' used with 'I have.' By
adding these you can express what you will not put up with or
allow.

"I cannot have that behavior in my house."

"I cannot have you over tonight."

"I won't have anything to do with that."

"I won't have it any other way."