Can an auxiliary verb be parallel to the main verb?

Question

Hello All,
In case of parallelism, can an auxiliary verb be parallel to the main verb? In the below given example, is  'has'  parallel to ' forced' ?

The new telecommunications company not only   has captured customers from other phone companies   but also   forced these companies to offer competitive prices  .

Will highly appreciate any response. 
Thanks!

mcelroytutoring  ,  AjiteshArun  ,  GMATNinja  ,  mikemcgarry  ,  egmat  ,  RonPurewal  ,  DmitryFarber  ,  MagooshExpert  ,  ccooley  , other experts-- please enlighten

EducationAisle · Answer

Don't see why that should be a problem.

For instance:

Mike is handicapped but runs very fast.

So, parallelism is between  is  and  runs .

GmatKnightTutor · Answer

https://gmatclub.com/forum/by-offering- ... 35470.html None of the answer choices are exactly the same (to the sentence above) but might be worth checking out. -contact: gmatknight site | gmatclub dm

AjiteshArun · Answer

Hi Jarvis07,

There are multiple things we should look at here:

1.  Try not to look at the helping verb separately, unless the question (or option) splits the verb.
For example, in your sentence, the two verbs are {has captured} and {forced}. We wouldn't normally say that  has  is parallel to  forced . Instead, we'd say that  has captured  is parallel to  forced .

2.  In (1), we have one verb in the  present perfect tense  and another in the  simple past tense . This is because we don't expect the GMAT to distribute the  has  to  forced  from inside the  not only... but also . The safest approach would be to not treat this as an absolute.

3.  If we need to clearly mark the second verb as being in the present perfect tense (meaning call), we could move the  has  outside the  not only... but also .

3a.  The new telecommunications company has  not only  { captured  customers from other phone companies}  but also  { forced  these companies to offer competitive prices} . ← Both  captured  and  forced  are past participles here.

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Can an auxiliary verb be parallel to the main verb?

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