Must-Know GMAT Sentence Correction Rules 

Misplaced Modifier -  In these types of questions, phrases are mostly misplaced, illogically placed or describes some incorrect words.

Verb-subject Compatibility -  GMAT sentence correction questions frequently cover verb-subject errors. The nature of the sentence must match the verb. 

Idioms -  GMAT sentence correction is more than correcting grammatical mistakes, it involves sentence creation that should sound idiomatically correct also. 

Correct Verb Tense -  GMAT sentence correction questions mostly comprise of questions to test your verb tenses the basics past, present, and future. 

Illogical Comparison -  GMAT sentence correction section consists of questions that mention sentences with an illogical comparison. 

Pronoun Usage -  Correct pronoun represents their forerunner meaning that the sentence should match its occurrence. 

Countable and Uncountable -  GMAT sentence correction questions comprise of phrases which are used to measure your critical thinking in terms of putting situations with countable and uncountable things . Uncountable things include the much less amount with singular nouns.

Parallelism -  GMAT sentence improvement questions include some parallelism related things. Such as sentences consisting of frequently repeating nouns, verbs and phrases. 

Paired Words -  GMAT sentence correction questions consist of questions related to pairing and construction of sentences. 

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