Imperatives are used to issue commands. They use the infinitive of verbs (dropping the word “to“); in the first person plural (“we“), the infinitive is preceded by “let’s” (or: “let us“):
- Speak!
- Finish your homework!
- Let’s eat!
- Close the door!
The negative imperative is formed by placing “don’t” (or “do not“) before the imperative form; in the first person plural one uses “let’s not” (or “let us not“) :
- Let’s not forget who helped us.
- Don’t leave me!
- Don’t walk on the grass!
- Please don’t eat the daisies!
The imperative has no effect on the word order of the rest of the sentence.