In positive commands, we use the INFINITIVE VERB without
"to"
and without SUBJECT:
·
Go!
·
Look at me.
·
Help!
·
Be quiet.
·
Be good.
·
Stop talking.
·
Sit down.
·
Shut up!
·
Call the police!
·
Wait a minute.
In negative commands, we use: "do" +
"not" + INFINITIVE VERB
without "to" and without SUBJECT:
·
Don't wear that stupid hat.
·
Do not sign your name with a pencil.
Sign with a pen.
·
Don't walk on the grass.
·
Don't act like an idiot.
·
Don't yell at me!
Of course there are many words to soften a command:
Please, excuse me, pardon me, thank you, thanks
·
Please repeat the question.
·
Please speak more slowly. --Thank
you.
·
Tell me please, what time is it? --Thank
you.
·
Excuse me, pass me the salt please.
--Thanks
·
Excuse me, come this way please.
·
Pardon me, please don't smoke in the
elevator.
·
Pardon me, please speak quietly,
remember that you are in a hospital.
·
Hold on please.
source: http://www.easyenglish.com/lesson.asp?dont.txt