GMAT SENTENCE CORRECTION TIPS

Following the Few Important Sentence Correction Tips in the Reading Comprehension.  

• Look out for : none, each,....pronoun number errors.
• Verb agreement with subject w.r.t. number, tense, etc.
• Modifiers...recognize them.
• Possessive case --it's not the subject.
• Dangling Modifiers -- Modifiers which have no subject --- wrong!!
• Almost always Modifiers come immediately after the word they modify!
• IF Vs WHETHER - If--  hypothetical.... whether -- when you have to choose among options
• Maintain PARALLELISM -- rather than, instead of, to X is to Y, etc.
• Look out for Sentences starting with "to"...maintain parallelism
• BOTH -- only two things!! and parallel too!!
• Look out for COMPARISONS -- LIKE, UNLIKE, SIMILAR TO...compare same types (number, type, etc.)
• Look for countable and non-countable nouns. (amount, sum,etc.)
• THAT Vs WHICH ...that is restrictive...which is non-restrictive.
• LIKE Vs AS ... like expresses similarity ... As compare clauses
• SUCH AS --; to give examples .. such X as x1, x2, x3.
• JUST AS --; again to compare actions, not nouns.
• BECAUSE Vs IN THAT ...because shows cause and effect ... in that is mostly correct on the GMAT.
• USUAL Vs IS USUAL ... usual... compared to itself... is usual...when compared to a sub-group it belongs to.
• NATIVE OF Vs NATIVE TO ... Native of is used for a person...native to is corrector person/thing..everything else.
• CAN Vs COULD -- can = ability, opportunity, possibility. could = assumption, condition, polite request, suggestion
• WOULD --; a condition in the past, anticipation in the past.
• BECAUSE Vs ON ACCOUNT OF --; former is preferred over the latter. both are correct.
• ECONOMIC Vs ECONOMICAL --; Economic is economy related... Economical is Money-saving
• 'Declining revenues' -- ; is plur.