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Rule "mismatched verbs and tag question operators"

This is one of many errors that LanguageTool can detect.

Description: mismatched verbs and tag question operators
By default, this rule is not active in LanguageTool
Message: In a tag question, the operator (verb) must match '\3'.
Category: Punctuation (ID: PUNCTUATION)
Incorrect sentences
that this rule can detect:
  • I don't start, am I?
    Correction suggestion: do I
  • You don't know, are you?
    Correction suggestion: do you
Correct sentences
for comparison:
  • Don't ask the old man "How are you?", instead ask him "What's bothering you today?".
ID: TAG_QUESTIONS_2 [3]
Version: 6.7-SNAPSHOT (2025-07-10 22:33:09 +0200)