What is a sentence?
Sentences can have one word.
True or false?
True!
Sentences can have one word such as yes., no., why?, where?
What is an imperative?
A command of request where the subject may not be present but is implied.
The subject is you (plural or singular)
Ex. (You) Go!, (You) Stop!
What is a fragment?
A fragment is an incomplete thought opposite of a full sentence. If a fragment was to be completed, it would be a full sentence.