Here’s the identification of each sentence:
- Run-on - This sentence improperly combines two independent clauses with a comma instead of separating them with a period or semicolon.
- Correct - This sentence is a complete thought and properly punctuated.
- Run-on - This sentence incorrectly connects two independent clauses with a comma instead of using a period or conjunction.
- Run-on - This sentence combines two independent clauses with a comma, making it a run-on sentence.
Corrected versions of the run-on sentences can be made for clarity. Let me know if you'd like to see those corrections!