Is the original sentence correct?

ildude02

I have included the sentence to be corrected in CAPSLOCK,

Recently implemented "shift-work equations" based on studies of the human sleep cycle have reduced sickness, sleeping on the job, FATIGUE AMONG SHIFT WORKERS, AND HAVE RAISED production efficiency in various industries.

(a) As above
(b)fatigue among shift workers, and raised
(c)and fatigue among shift workers while raising
(d)lowered fatigue among shift workers, and raised
(e)and fatigue among shift workers was lowered while raising

If any of you think otherwise, can yo please give the explanation as to why not (a) or why it's (a). I'd appreciate it.

camitava · Posted: Tue Jan 15, 2008 10:56 pm Post subject:

ildude02, I will go for C. To me, it can not be A because, the sentence is already having HAVE as its verb (to indicate present perfect tense) - so no need to have one more HAVE in the underlined section. B in that case comes next to select. But if u refer C, it is saying clearly that two opposing actions go on here. One is reducing all those negative effects while increasing the positive effect. So it is coming as the best option to chose. Are u getting me ildude02?

Stuart Kovinsky · Posted: Wed Jan 16, 2008 12:54 am Post subject:

ildude02 · Posted: Wed Jan 16, 2008 9:35 am Post subject:

Thanks for your eplanation guys.

I happen to choose choice (a) since I got locked into the "parallel" structure between "have reduced" and "have raised". Since both of them are having parallel structures with respect to the "have", I felt the sentence is fine as it stands.

If possible, can any of you guys explain how do I make sure that I apply or not apply parallelism. Especially if there is sentence with many parts and lengthy modifiers, how to make sure which part of the sentence or modifers should I look out for parellelism and not get tangled with the parellism of the "not so important" modifiers. I'd appreciate your thoughts.