Argue about petty and trivial matters.
This is normal sister bickering.
Argue about petty and trivial matters.
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Verb: bicker; 3rd person present: bickers; past tense: bickered; past participle: bickered; gerund or present participle: bickering
“This is normal sister bickering”.
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"whenever the phone rings, they bicker over who must answer it".