Question Tags are used to check facts or make conversation.
> When the statement is positive you use a negative question tag.
> When the statement is negative you use a positive question tag.
You use the auxiliary or modal verb to create it.
- be, have and do can be auxiliaries and main verbs. They have grammatical functions and are used for forming tenses, questions, the passive, etc.
- Modals are can, could, may, might, must, ought to, shall, should, will, would and need (need can also be a main verb).
- If the statement does not have an auxiliary or modal verb you use: do/does or did