Must an imperative sentence begin with a verb?

No, an imperative sentence doesn't have to begin with a verb, but it often does. Here's why:

* Common Structure: The most typical structure of an imperative sentence is: Verb + Subject (you)

* Example: "Go to the store." (Go = verb, you = implied subject)

* Emphasis: Starting with the verb creates a sense of urgency and directness, which is the essence of an imperative sentence.

* Exceptions: You can have imperative sentences that begin with other parts of speech, especially when:

* Emphasis on something other than the action:

"That you do not forget!" (Emphasis on "that")

* Informal or conversational:

"Please, be careful." (Emphasis on politeness)

So, while it's not a hard and fast rule, imperative sentences are often more impactful when they start with the verb.