Page 275 - Practical English Usage 3ed - Michael Swan, Oxford

in and into, on and onto: prepositions 269
4 do(n'f) be
Although do is not normally used as an auxiliary with be (see 90), this happens in negative imperatives.
Don't be silly!
Do be can begin emphatic imperatives.
Do be quiet!
5 subject with imperative
The imperative does not usually have a subject, but we can use a noun or pronoun to make it clear who we are speaking to.
Mary come here - everybody else stay where you are.
Somebody answer the phone. Relax, everybody.
You before an imperative can suggest emphatic persuasion or anger.
You just sit clown and relax for a bit. You take your hands off me!
Note the word order in negative imperatives with pronoun subjects. Don't you believe it. (NOT ¥tm dtm't believe it.)
Don't anybody say a word. (NOT 141lyb6dy thm't say ...)
6 question tags
After imperatives, common question tags (see 487-488) are will you? would you? can you? and could you?
Give me a hand, wiU you?
Wait here for a minute, would you? Get me something to drink, can you?
Can't you and won't you are more emphatic.
Be quiet, can't you? Sit down, won't you?
After negative imperatives, will you? is used. Don't tell anybody, will you?
7 word order with a/ways and never
Always and never come before imperatives.
Always remember what I told you. (NOT Remember tdways ...) Never speak to me like that again.
8 let
English does not have a first-person imperative (used to suggest that 'I' or 'we' should do something) or a third-person imperative (for other people, not the hearer). These ideas are often expressed by a structure with let.
Let me see. Do I need to go shopping today? Let's go home. Let him wait.
For more details of this structure. see 323.
269 in and into, on and onto: prepositions 1 position and direction
We generally use in and on to talk about the positions of things - where they are; and into and onto to talk about directions and destinations - where things
are going. Compare:
page 243
~