the helping verb to have could be a source of problems to a newbie EFL. It is, without a doubt, an odd verb in the sense that it functions in various ways, which can be puzzling.
However, if the student can identify the three different ways this verb is used, he or she will find that the modus operandi is quite simple. In the simple present tense, to have is conjugated as follows:
To have: the affirmative, negative and interrogative forms.
Affirmative forms of the verb to have:
Interrogative forms of the verb to have
Has Brad Pitt a helicopter?
No, he hasn’t. He’s a yacht.
What about Angelina Joli? Has she a yacht, too?
Yes, she has. She has a private jet too.
No, They haven’t. They have a palace.