josh_nsit Wrote:Something similar holds true for sentences in past. I feel above sentences as example are correct semantically. Please correct me if any of them is wrong.
no, those sentences look fine.
i'm pretty sure you could also excise "have" from the second sentence, as there would still be no ambiguity.
I follow the rule : Has/Have used in sense of possessive references as in 1st sentence calls for a parallel verb form of 'do'. whereas any supporting verb/perfect conjugate calls for repetition of support verb form as in sentence 2.
it appears that you're implicitly following a rule that says something like "if a sentence looks like X and is grammatically correct, then ALL other grammatically correct sentences of that type must perforce also look like X".
equivalently, you seem to believe that if there exists a correct sentence with structure X, then ALL structures other than X are wrong.
with certain
very mechanical notions, such as s-v agreement, this principle largely works, although it's still questionable even then.
however, trying to apply it to matters such as diction, usage, and word choice - as you're doing here - will be ruinous.
The posted sentence in the question here can be fit into the sentence 1 if one replaces 'I' with 'young people' and toys with 'commitment of work'.
From the specific behavior of above grammar rules, I reached the inference that in absence of supporting verb in first part, there should be no supporting verb in 2nd phrase comparison as it is there in choice D. Also, b seemed correct as usage of verb form of do/did can be obviated.
It will great if you can shed some light on, where I am going wrong. I dont think have as such used in D is a case of a supporting verb at all.
* one:
the "rule" you're trying to use is fundamentally flawed. you're trying to distill word choice / usage down to a formula; you simply
will not be able to do that.
as stated above, formulaic "rules" work well for mechanical grammar concepts, but word choice / usage is not such a concept.
* two:
the inclusion or exclusion of the helping verbs here is driven by
ambiguity.
in general, the rule is to
exclude unnecessary helping verbs, unless the sentence is ambiguous without them.
it has already been established in this thread (go back to the post marked 9 jul 2008 5:44am) that, in this problem, the structures without "had" are AMBIGUOUS, and therefore wrong.
period.
full stop.
end of story.
your analogue is
not ambiguous, and is therefore a poor analogue: you can get away with removing
its helping verb (because there's still no ambiguity), but you can't do the same for the sentence in the problem.
* three:
seriously.
DO NOT ATTEMPT TO FIND "ERRORS" IN CORRECT ANSWER CHOICES FROM OFFICIAL PROBLEMS.
don't.
they are officially correct answers. questioning their correctness is about as effective as having a fistfight with a brick wall.
it's their playground. they make the rules; you don't. play by their rules.
there are certainly official problems whose solutions i don't much like, either. but, even though i'm really good at this stuff, that doesn't make those choices any less correct in the gmat universe.
i gave a lecture of sorts on this topic
here.