The imperative mood (abbreviated IMP) expresses commands or requests as a grammatical mood. These commands or requests urge the audience to act a certain way. It also may signal a prohibition, permission, or any other kind of exhortation.

Formulation of the English imperative simply uses the bare infinitive form of the verb. The infinitive form usually corresponds to the second-person present indicative form, with the exception of the verb be. The subject of these sentences is usually understood as you (the second person) except in the case of "Let's" which implies first person and at least a second person. Other languages such as Latin, French and German have several inflected imperative forms, which can vary according to grammatical categories such as:

For instance, Latin regular forms can exist:

Some consider this richness of forms useful for a better understanding, particularly because no subject pronoun normally specifies with the imperative.

The use of the imperative mood be seen as impolite, inappropriate or even offensive in certain circumstances. Commonly, polite speech will instead express the same thing as a question or statement, such as:

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