REVERSAL OF SUB-VERB : GMAT Verbal Section
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# REVERSAL OF SUB-VERB

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Intern
Joined: 03 Mar 2012
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REVERSAL OF SUB-VERB [#permalink]

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23 Jul 2013, 08:02
Hello Everyone,

I have come across the below question and thought that this is an example of the verb coming before the subject. Could you please clarify this. Should it be plural or singular

The time when the apartment building in downtown Milwaukee started on fire has been determined by the fire department,but what is problematic to establish are/is the source of flame,the mechanism by which it ignited the building,and the extent of the damage.
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Joined: 10 Apr 2013
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Re: REVERSAL OF SUB-VERB [#permalink]

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23 Jul 2013, 09:22
Sriram28,

Just flip it..

"the source of flame is problematic to....

clearly it should be "is" and not "are"
Re: REVERSAL OF SUB-VERB   [#permalink] 23 Jul 2013, 09:22
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# REVERSAL OF SUB-VERB

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