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TEAS English & Language UsageThe two biggest sentence errors

Fragments & Run-OnsATI TEAS 7 cheat sheet

The two biggest sentence errors

8 key facts 2 practice questions Reviewed Oct 2026
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Fragment

  • Missing a subject, a verb, or a complete thought
  • 'Because the shift ended.' — dependent, cannot stand alone
  • Fix: attach it, or add what is missing

Run-On

  • Two independent clauses with no punctuation
  • 'The alarm rang the nurse responded'

Comma Splice

  • Two independent clauses joined by only a comma — still an error
  • 'The alarm rang, the nurse responded'

Four Fixes

  • Period · semicolon · comma + FANBOYS · make one clause dependent
Key takeaway

The two biggest sentence errors

Before you read

Test yourself first: 2 questions

Question 1 of 2

Which of the following is a complete sentence?

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