Giving commands, instructions, and requests: Open the door. Please sit down.
Base verb (no subject): Open the door. Sit down.
Don't + base verb: Don't touch that. Don't be late.
Imperatives are not questions (but can use question tags: Sit down, will you?)
💡 Subject 'you' is understood but not stated. Use 'let's' for first person plural: Let's go.
✓Close the door.
✗You close the door.
Imperatives omit the subject 'you'.
✓Don't forget your keys.
✗Not forget your keys.
Negative imperative uses don't + base.
✓Let's start the meeting.
✗Let start the meeting.
First person plural uses let's (let us).