The stem with the appropriate spelling changes is most commonly
used as the command form. When being polite, the u form is used (with u following
the verb.) If a verb has a separable prefix, it is sent to the end of the clause.
The "let's" form plus a verb is rendered in Dutch by laten we + infinitive.
When the command is general and no one in particular is being addressed, the
infinitive is used, especially on signs.

Kijk! Look!
Laat mij het doen! Let me do it!
Blijft u zitten. Please remain seated.
Kijk uit! Look out!
Laten we gaan. Let's go.
Niet roken. No smoking.
Trekken / Duwen. Push / Pull.

Note that zijn has an irregular imperative form: wees (and
the polite form: weest u)

This article was used with permission from:
Indo-European Languages