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.
No, it is a complete sentence, but it needs punctuation (comma, semicolon) or it becomes a run-on. "You stopped, she didn't." "You stopped; she didn't."
Any end punctuation will work depending on the sentence.
Commas in the middle of a sentence, such as these, are internal punctuation; however, so are semicolons! But the exclamation point is at the end of the sentence and so is not internal!
This *might* be referring to end punctuation, i.e. the punctuation mark at the end of a sentence or question. It might be a period, a question mark, an exclamation mark.
Fragment.
There may or may not be a full stop at the end of a sentence fragment. It is the grammatical content that determines whether it is a fragment. For example, 'She opened the' is a fragment, whether there is a full stop after it or not.
Punctuation at the end of a sentence indicates a complete thought.
The different punctuation at the end of a sentence are mostly period ("."), Question mark ("?"), Exclamation mark ("!").
At the end of a sentence.
Well, isn't that just a happy little sentence fragment you've got there! Remember, a complete sentence needs a subject and a verb. In this case, "We went to the park" is a complete sentence, but "I played on the swings" is also a complete sentence. So when you put them together without proper punctuation, you end up with a sentence fragment. Just add a comma or a conjunction like "and" to join them together, and you'll have a complete thought!
No, it is a complete sentence, but it needs punctuation (comma, semicolon) or it becomes a run-on. "You stopped, she didn't." "You stopped; she didn't."
Any end punctuation will work depending on the sentence.
no it doesn't because it is a punctuation not a word
Yes. You can end a sentence with "am I" as is shown here: "I'm not that mean, am I?". I'd think that it'd normally be in the form of a question with some sort of punctuation (like the comma in the example) separating it from the main body of the sentence. Just make sure that you don't do something like this: "I'm not that mean. Am I?". In that sentence "Am I" is a sentence fragment.
All sentences use punctuation, if only a period at the end.
Terminal punctuation marks are used at the end of a sentence, such as periods, question marks, and exclamation points. Internal punctuation marks are used within a sentence, such as commas, semicolons, and colons.
A period (.) is placed at the end of a declarative sentence.