Final answer:
The verb takes the imperative form when the speaker gives a command without stating the subject.
Step-by-step explanation:
When the speaker gives a command without stating the subject, the verb takes the imperative form. The imperative form is used to give orders, commands, or instructions. It is usually formed by using the base form of the verb without any changes, and it is commonly used in sentences like 'Go to bed!' or 'Do your homework!'
Learn more about Verb forms and commands