Why do some people use "have had/has had/had had" in their sentences??
Are these sentences correct grammatically? Do these sentences follow grammar rules?
I have got some sentences which made me so confused-
1. Have they had their breakfast yet?
2. Have you had a nice evening?
3. Have you always had hay fever?
4.I've had a headache since early morning.
Please make me understand anyhow.:)
And do correct if there are any grammatical mistakes.
They are correct- the first verb is the auxiliary verb and the second is the past particple to form the present perfect.