Imperatives are verbs used to give orders, commands, warning, or instructions, and (if you use please) to make a request. It is one of the three moods of an English verb (indicative, imperative, and subjunctive).

• Examples
• Give me that tape, please.

To make the imperative, use the infinitive of the verb without to.

• Examples
• Come here!
  Sit down!

To make a negative imperative, put do not or don’t before the verb:

• Examples
• Don’t go!
  Do not walk on the grass.

You can also use let’s before the verb if you are including yourself in the imperative. The negative of let’s is let’s not.

• Examples
• Let’s stop now.
  Let’s have some lunch.
  Let’s not argue
  Let’s not tell her about it.

You can also use the imperative to make a request, but you should use a polite word before the verb:

• Examples
• Please take a seat.
  Please wait here.
  Please hold the line.
  Please don’t smoke here.