Hi !!
The imperative is a verb form for direct orders, requests, advices, suggestions, instructions ..
<em>there are three "persons" </em>
you singular
you plural
us when you are included in the sentence = let's
<em>but you can also say "let me.." "let her.." "let them.." etc...</em>
<em />
<em>negative form = </em>
<em>don't + infinitive</em>
<em>let us not + infinitive </em>
<em />
<em />
examples
- Close that door !
- Stop yelling !
- Don't be late !
- Get out of here !
<em>in a more polite way</em>
- Please, come in !
- Shut that window, please
<em>When you are included</em>
- Let's go and have fun !
- Let's go back home, I'm feeling sick !
- Let me go to the party, please !
- Don't smoke in restricted areas !
- Let's eat an ice cream ! It's so hot !
☺☺☺