Is a comma splice a run-on?

Yes. We finished early, we helped clean up joins two complete sentences with only a comma. The repair is a period, a semicolon, or a comma plus a conjunction. Teachers mark it as a run-on because the problem is the same.

Can a fragment ever be correct?

In fiction and in speech, all the time. Nobody moved. Not a sound. In an essay or a report, a fragment reads as a mistake, which is the register this page is for.

Why does this page add run-ons at seventh grade?

Because by seventh grade the two errors are usually taught, tested, and marked together, and telling them apart is most of the skill. A student who can name all three has a proofreading checklist rather than one rule.

7th grade sentence fragments

7th grade sentence fragments worksheets

A fragment is a word group written as a sentence without being one: it is missing a subject, a verb, or the words that finish the thought. A run-on is the opposite problem, two sentences with nothing between them. Seventh graders sort word groups into fragment, complete sentence, and run-on.

Free printable PDF worksheet, aligned to Common Core L.7.1.c.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of sentences you'll get

Read each group of words. Circle the letter of the best label.

“The assembly ran long, lunch started late.” This is . a complete sentence · a run-on · a fragment
Answer: a run-on
“Volunteers planted the garden in April.” This is . a complete sentence · a run-on · a fragment
“Wrapping the presents on the kitchen floor.” This is . a fragment · a complete sentence · a run-on

Every print pulls a new set of sentences at this level, so a make-up test or a second sibling gets a different mix.

What's on a 7th grade sheet

7th grade sheets draw from 69 sentences, 10 to a page. None of these sentences are on 6th grade sheets.

A few of the sentences:

Tickets sold out in five days.
Who had served on the very first council.
The mural dried overnight the block looked brighter.

Choose the word. Read each group of words. Circle the letter of the best label. 10 questions per page.

Every version prints on US Letter or A4, with its answer key on the last page.

How to teach this

Add the third answer and this page turns into a real proofreading drill. Teach the routine as two counts: how many subject and verb pairs are here, and is each one finished? Zero pairs, or a pair that opens with because or although, means fragment. One finished pair means a sentence. Two pairs with only a comma or nothing between them means a run-on. The comma splice is the version students write most and recognize least, so name it out loud and show two or three.

Watch for: Kids call anything long a sentence. 'The tall girl in the blue jacket from my bus' is ten words of naming with no telling part, and it is still a fragment. Starters like when, because, and after make a clause feel complete. 'Because we were late' leaves the reader waiting; kids need to hear that hanging feeling.

Common questions about 7th grade sentence fragments

Is a comma splice a run-on?: Yes. We finished early, we helped clean up joins two complete sentences with only a comma. The repair is a period, a semicolon, or a comma plus a conjunction. Teachers mark it as a run-on because the problem is the same.
Can a fragment ever be correct?: In fiction and in speech, all the time. Nobody moved. Not a sound. In an essay or a report, a fragment reads as a mistake, which is the register this page is for.
Why does this page add run-ons at seventh grade?: Because by seventh grade the two errors are usually taught, tested, and marked together, and telling them apart is most of the skill. A student who can name all three has a proofreading checklist rather than one rule.

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Aligned to Common Core L.7.1.c. Reviewed by the One more sheet team. Content version 241, updated October 2026.

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