Final answer:
Imperative sentences are commands that lack a subject and are commonly used in instructing, requesting, or directing others.
Explanation:
An imperative sentence is a command that instructs or requests someone to do something. It often lacks a subject and can end with a period or an exclamation mark. Examples include 'Close the door' and 'Sit down.'
Imperative sentences are commonly used in giving directions, issuing commands, or making requests where the verb comes first to convey a sense of urgency or importance.
Verbs in the imperative mood are crucial in forming imperative sentences, and they usually convey orders, instructions, or advice.
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