The document outlines the structure of imperative sentences in English. It explains that imperative affirmative sentences use the bare infinitive or "do" form of the verb for the second person singular and plural. For first person plural, "let's" is used followed by the bare infinitive. Negative imperatives use "do not" or "don't" followed by the infinitive for second person or "let's not" for first person plural. Examples are provided to illustrate the different structures.

1. IMPERATIVE (Aff.)
General Do
(Bare) Infinitive [2nd person singular] (Bare) Do [2nd person singular]
Let’s + infin. [1st person plural]
Let’s do [1st person plural]
(Let us)
(Bare) Do [2nd person plural]
(Bare) Infinitive [2nd person plural]
Examples:
-Stand up, open the door and go home. [For both 2nd person singular and plural]
-Let’s go to the kitchen and (let’s) have something to eat. [1st person plural]

2. IMPERATIVE (Neg.)
General Do
Do not + infinitive [2nd person singular] Don’t do [2nd person singular]
Let’s + not infin. [1st person plural]
Let’s not do. [1st person plural]
Do not + infinitive [2nd person plural]
Don’t do [2nd person plural]
Examples:
-Don’t stand up and don’t talk to your mate. [For both 2nd person singular and plural]
-Let’s not go to the beach this weekend. [1st person plural]