I. TRUE or FALSE. Write True if the statement is true about modal verbs of obligation, and False if the statement is false.
1. There are three modal verbs of obligation.
2. We use have to when something is essential or absolutely necessary.
3. Expressing an opinion is one usage of should.
4. We used must instead of have to when we express personal obligation.
5. The modal verbs of obligation have the same usage.
6. The model verb must is an example of auxiliary verb.
7. In sentence structure, modal verbs of obligation are always followed by verbs in the base form.
8. Subject always comes first before the modal verb.
9. Modal verb should has three usages.
10. In the sentence, He will have to wait for the report, the modal verb is will.​