Answer:
1. The verb after "should" and "shouldn't" is in its base form, also described as an infinitive without "to".
2. To make a question with "should", we do not use the auxiliary do/does. Since "should" is a modal verb, it already functions as an auxiliary. We simply place it before the subject to form the question. For example: Should I tell him the truth?
Explanation:
<u>A modal verb is a type of auxiliary verb that helps convey ideas such as possibility, ability, or obligation. Examples of modal verbs are: should, must, can, may, might, etc.</u>
Modal verbs are followed by verbs in their base form. Take a look at the examples blow:
- We can to swim. --> INCORRECT
- We can swim. --> CORRECT
To form negative sentences with modal verbs, we simply add "not" after them. In most cases, a contraction between the words is possible.
- We must not let her know. --> We mustn't let her know.
To form interrogative sentences with modal verbs, we place them before the subject:
- Should I call him?
- What must I give her?
