4 Look at the examples. What is an imperative? How do you make the negative form? Fly north. Don't fly north. Swim in the river. Don't swim in the river.​

An imperative is a verb form used to give commands, instructions, or orders. It is usually the base form of the verb (i.e., the infinitive without "to"). In the examples provided, "fly" and "swim" are imperatives.

To make the negative form of an imperative, you use "don't" or "do not" + the base form of the verb. For example, "Don't fly north" and "Don't swim in the river" are negative forms of the imperatives "Fly north" and "Swim in the river."