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Sub 505 Level|   Parallelism|               
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tcsing
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The winds that howl across the Great Plains not only blow away valuabl 19 Jan 2013, 23:55
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94% (00:33) correct 6% (00:57) wrong based on 1841 sessions

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The winds that howl across the Great Plains not only blow away valuable topsoil, thereby reducing the potential crop yield of a tract of land, and also damage or destroy young plants.

(A) and also damage or destroy
(B) as well as damaging or destroying
(C) but they also cause damage or destroy
(D) but also damage or destroy
(E) but also causing damage or destroying

Show Spoiler
Hi! According to the OG, Option C is wrong because
1. "they" is not necessary" (agreed)
2. "to" is required after "cause damage" (yup)
3. "cause damage" is not parallel to blow --> can someone explain this please?
Wouldn't cause damage be a present tense verb just as "blow" is? hence, shouldn't they be parallel?

Thanks!
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D
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Marcab
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The winds that howl across the Great Plains not only blow away valuabl 20 Jan 2013, 01:19
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tcsing
The winds that howl across the Great Plains not only blow away valuable topsoil, thereby reducing the potential crop yield of a tract of land, and also damage or destroy young plants.
(A) and also damage or destroy
(B) as well as damaging or destroying
(C) but they also cause damage or destroy
(D) but also damage or destroy
(E) but also causing damage or destroying

Hi! According to the OG, Option C is wrong because
1. "they" is not necessary" (agreed)
2. "to" is required after "cause damage" (yup)
3. "cause damage" is not parallel to blow --> can someone explain this please?
Wouldn't cause damage be a present tense verb just as "blow" is? hence, shouldn't they be parallel?

Thanks!
Show more

See the key point here is parallelism, both in grammer and logic.
The two impacts of the winds are:
i) blow away valuable top soil
ii) damage or destroy.

"cause damage" is not parallel to "blow" because here "blow" is a verb but "damage" is a noun. On both sides you must have either verb or noun.

Hope that helps.
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The winds that howl across the Great Plains not only blow away valuabl 20 Jan 2013, 01:24
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Marcab
tcsing
The winds that howl across the Great Plains not only blow away valuable topsoil, thereby reducing the potential crop yield of a tract of land, and also damage or destroy young plants.
(A) and also damage or destroy
(B) as well as damaging or destroying
(C) but they also cause damage or destroy
(D) but also damage or destroy
(E) but also causing damage or destroying

Hi! According to the OG, Option C is wrong because
1. "they" is not necessary" (agreed)
2. "to" is required after "cause damage" (yup)
3. "cause damage" is not parallel to blow --> can someone explain this please?
Wouldn't cause damage be a present tense verb just as "blow" is? hence, shouldn't they be parallel?

Thanks!

See the key point here is parallelism, both in grammer and logic.
The two impacts of the winds are:
i) blow away valuable top soil
ii) damage or destroy.

"cause damage" is not parallel to "blow" because here "blow" is a verb but "damage" is a noun. On both sides you must have either verb or noun.

Hope that helps.
Show more

Thanks Marcab! I see what you mean but I was wondering why "cause" couldn't be the parallel word? I'm not very good at judging when nouns are nouns/ verbs are verbs but it seems cause could be a verb here?

Thanks for answering so many of my queries on this forum :)
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The winds that howl across the Great Plains not only blow away valuabl 20 Jan 2013, 02:13
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"Cause" is a verb here, so it could in theory be parallel to "blow." The main parallelism problem in C is with "they." Whatever comes after "but also" should match what came after "not only," so we want a verb, not a pronoun. As for "cause," the problem I see with it (other than that it should be accompanied by "to," as you said) is that using "damage" as a verb would be more direct. Why say "cause damage to" when we can just say "damage"?

In any case, that's the last thing I would look at on C. The other problems are much more glaring. What it comes down to is that C makes no sense, so depending on how we read it we will see different errors.
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The winds that howl across the Great Plains not only blow away valuabl 07 Jan 2014, 05:55
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Very easy question...
not only X, but also Y... X and Y must be parallel.
So, the correct answer is D.

P.S. - I did this question in 26 seconds :)
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The winds that howl across the Great Plains not only blow away valuabl 20 Jun 2016, 08:34
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850. The winds that howl across the Great Plains not only blow away valuable topsoil, thereby reducing the potential crop yield of a tract of land, and also damage or destroy young plants.
(A) and also damage or destroy
(B) as well as damaging or destroying
(C) but they also cause damage or destroy
(D) but also damage or destroy
(E) but also causing damage or destroying


Easy one!
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The winds that howl across the Great Plains not only blow away valuable topsoil, thereby reducing the potential crop yield of a tract of land, but also damage or destroy young plants.

Correct answer is undoubtedly option (D)
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The winds that howl across the Great Plains not only blow away valuabl 27 Jan 2021, 04:27
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DmitryFarber
"Cause" is a verb here, so it could in theory be parallel to "blow." The main parallelism problem in C is with "they." Whatever comes after "but also" should match what came after "not only," so we want a verb, not a pronoun. As for "cause," the problem I see with it (other than that it should be accompanied by "to," as you said) is that using "damage" as a verb would be more direct. Why say "cause damage to" when we can just say "damage"?
In any case, that's the last thing I would look at on C. The other problems are much more glaring. What it comes down to is that C makes no sense, so depending on how we read it we will see different errors.
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AndrewN EducationAisle EMPOWERgmatRichC
I have 2 basic doubts.
1) If "cause" is a verb, then why E is wrong? In E, blow and causing maintain correct parallelism. I think D is more concise than E. Is my understanding correct?
2) Can we consider 2 different tense (blow and causing) parallel? As per my understanding, v-ing should be parallel to v-ing.

Thanks in advance.
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The winds that howl across the Great Plains not only blow away valuabl 27 Jan 2021, 04:44
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Sneha2021
I have 2 basic doubts.
1) If "cause" is a verb, then why E is wrong? In E, blow and causing maintain correct parallelism. I think D is more concise than E. Is my understanding correct?
Show more
Not sure I get your question. E does not use cause and hence it's wrong :) .

Quote:
2) Can we consider 2 different tense (blow and causing) parallel? As per my understanding, v-ing should be parallel to v-ing.
Show more
causing is a participle and participles do not necessarily have a tense associated with them.

For example:

Peter is causing pain.

Peter was causing pain.

Notice that both sentences use causing, but while the first sentence is in present, the second is in past. In other words, the presence of causing is not really determining the tense of the sentence.

If your question however, is that can the various parts of a parallel structure be in different tenses? Then the answer is yes. For example:

Peter was born poor but is now doing extremely well.

Here, the parallelism is:

Peter was...and is..
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The winds that howl across the Great Plains not only blow away valuabl 27 Jan 2021, 08:43
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AndrewN EducationAisle EMPOWERgmatRichC
I have 2 basic doubts.
1) If "cause" is a verb, then why E is wrong? In E, blow and causing maintain correct parallelism. I think D is more concise than E. Is my understanding correct?
2) Can we consider 2 different tense (blow and causing) parallel? As per my understanding, v-ing should be parallel to v-ing.

Thanks in advance.
Show more
Hello, Sneha2021. I agree with what Ashish wrote above in response to your query. To follow up in my own way, I will add that I have seen zero cases in which a simple present verb, such as blow, has been considered parallel to its -ing counterpart when parallelism is being tested. It is better to play it safe and look for matching simple present verbs or participles. (Note that VERB-ing and VERB-ed phrases have appeared in parallel in a few tougher questions, but the majority of the time, VERB-ing goes with VERB-ing.)

Thank you for thinking to ask me, and good luck with your studies.

- Andrew
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The winds that howl across the Great Plains not only blow away valuabl 27 Jan 2021, 17:34
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Hi Sneha2021,

With a quick scan of the Answers, we can immediately see 2 potential 'clues' as to what's going on in this SC:

First, the 'second half' of the phrase "not only.... but also" appears in some of the answers, so THAT phrase is something too look for in the construction of the sentence. Second, all 5 answers imply that we're dealing with a 2-part phrase of some kind, meaning that Parallelism will almost certainly be involved.

In the non-underlined portion of the sentence, we see "....not only...." so we can eliminate Answers A and B. The usage of the word "they" in Answer C is redundant (since the prompt is describing the various effects of the "The winds...."), so that Answer can also be eliminated. Between Answers D and E, we clearly have different Verb structures, so we just need to locate what we have to 'parallel' in the non-underlined portion; that's the word "...blow....", so Answer E is out.

Final Answer:
Show Spoiler
D

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The winds that howl across the Great Plains not only blow away valuabl 13 Sep 2023, 20:01
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The original sentence has a parallelism issue because it uses "not only" without a corresponding "but also." To correct this, we need to make the sentence grammatically parallel. Let's evaluate the answer choices:

(A) and also damage or destroy

This option maintains the non-parallel structure. It should be "not only...but also," so this choice is incorrect.
(B) as well as damaging or destroying

This choice also fails to correct the parallelism issue. It uses "as well as" which is not parallel to "not only...but also." It should be "not only...but also," so this choice is incorrect.
(C) but they also cause damage or destroy

This option introduces the word "they," which is not necessary and makes the sentence wordy. Additionally, it uses "cause damage or destroy," which is not concise. It should be "not only...but also," so this choice is incorrect.
(D) but also damage or destroy

This choice correctly uses "but also" to create a parallel structure: "not only...but also." It also uses the concise "damage or destroy." This option is grammatically correct and clear.
(E) but also causing damage or destroying

This choice introduces the word "causing," which is not necessary and makes the sentence wordy. It should be "not only...but also," so this choice is incorrect.
The correct answer is (D):

"The winds that howl across the Great Plains not only blow away valuable topsoil but also damage or destroy young plants."
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