Has/have singular/plural?

Hi,

Do these tickets have an expiration date?

Does this ticket have an expiration date?

How come in the second singular sentence have isn't has? Ticket's singular shouldn't has follow it?

In both cases, 'have' is the infinitive. The part that changes depending on 'singular/plural' is the auxiliary verb, ie 'do/does'.

Just adding a little to Clive's comment.

Remember my earlier reply ? In which I said when you have anyone of the modals listed on my reply in a sentence or question, the verb immediately follows must remain in its bare form. This is the case for you sentence.

Keywords: Does ticket have

What exactly is an infinitive and what are its uses? What rules apply to an infinitive?

dimsumexpressJust adding a little to Clive's comment.

Remember my earlier reply ? In which I said when you have anyone of the modals listed on my reply in a sentence or question, the verb immediately follows must remain in its bare form. This is the case for you sentence.

Keywords: Does ticket have

Yes, this definitely help

"Do" has a special property that other verbs don't have. It can be used at the beginning of a question. i.e. Do you / they speak Chinese? In question form, then it is acting like a modal even though not classifed as one. Additionally, It can be used as an intensifier. i.e. Are you sure they speak Chinese ?

Yes, they do speak it very well! Notice there are two verbs. Speak is the

pleasehelpDoes this ticket have

is n xamplle of have

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