MODAL VERBS

Which of the following is NOT a modal verb?

• can

• could

• cause

• must

Which of the following is a bare infinitive form?

• Say

• To say

• Says

• Said

Which modal verb is used to express prohibition?

• Can't

• (not) Have to

• Mustn't

• shouldn't

Which modal verb is NOT used to express possibility?

• May

• Might

• Could

• Be able to

Which of the options is not a characteristic of modal verbs?

• They are used to express functions: possibility, ability, obligation...

• They are followed by other verbs in the bare infinitive form.

• They are followed by adjectives

• They do not add

  -s in the 3rd person singular.