Imperative form – usage
When used by itself as a sentence ending the imperative form can be very direct and can seem very rude. However it can be used by itself in some situations:
(1) By a man of higher status or age to a person of lower status or age, or by a father to a child.
Go to bed now!
Don’t be late!
(2) Between men who are friends, often followed withよ.
Come round mine tomorrow.
Don’t drink too much
(3) To be brief when giving instructions or in an emergency. Even in this case, only by men of higher status.
Don’t use the lift!
(4) Commands in group activities such as sports.
(5) When cheering at sports events. Also used by women in this case.
Go for it!
(6) In warning signs.