Yes.
The absence of punctuation does not in itself cause a string of words to be defined as a fragment, nor does the presence of punctuation cause a string of words to be defined as a sentence. A sentence without a full stop is not a fragment; it is a sentence without a full stop. A phrase followed by a full stop is not a sentence; it is a fragment.
Do you work? is a complete sentence; it is not a sentence fragment.
fragment
"She wave." is fragment but "She waves" is a sentence.
Fragment.
sentence fragment
It is a sentence fragment
Make each fragment into a complete sentence.
"After the storm," is not a complete sentence so it is a fragment.
is a sentence fragment
A fragment sentence is a partial sentence. It does not have everything it needs to be a full sentence. For example: "The dog" is a fragment.
A sentence is a fragment when you do not have a noun/pronoun and a verb.