祈使句除用谓语动词表示外，还可用名词、形容词、副词等，如：

Help!  救人哟!

Fire! 失火了!

Patience!  要有耐心!

Careful!  小心!

Quickly!  快!

Hands up!  举起手来！

Good heavens! 天哪!

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状语可以含有意在言外的命令。一般隐含一个表示动作的动词:

Forward!

On your feet!

Faster！

两个状语可以连用:

Full speed ahead！

Back to work！

也可以是一个名词短语主语和一个状语连用:

Everybody inside！

All aboard！

Citizens to the left ！

这种隐含的动作动词可以是使役动词, 而名词短语充当直接宾语:

Backs to the wall! ["Put your backs to the wall!"]

Hands up! Shoulders back! Heads up! Eyes down! Hands on heads! Thumbs UP!

有一种无动词命令句是由状语后面接with - 短语构成的:

On with the show! ["Begin or continue the show."]

Off with his head! ["Cut off his head!"]

Off with your jacket! ["Take off your jacket I"]

Out with it! [ 固定的用语: "Tell me about it."]

带up 和down 的结构通常分别表示赞同和不赞同: Up with democracy! Down with racism!

【注】[a]在两个惯用的无动词句子中, 助动词后面隐含一个动作动词: Murder will out. ["Murder will come out"; "Murder will become known"].  Truth will out.

[b]偶尔起主语补语作用的形容词短语可以充当命令句: Careful! ["Be careful!"], Quiet!

（来自 CGEL）