Когда писать have и когда has?

HAVE
- I
- You
- They
- We

(+) I have breakfast at about nine frequently.

(-) I don’t have breakfast at about nine frequently.

(?) Do I have breakfast at about nine frequently?

HAS
- He
- She
- It

(+) SHE has breakfast at about nine frequently.

(-) SHE doesn’t have breakfast at about nine frequently.

(?) Does SHE have breakfast at about nine frequently?