difference between "never have been / have never been &

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djaytg: Junior | Next Rank: 30 Posts; Posts: 16; Joined: Wed Aug 01, 2012 9:40 pm; Thanked: 1 times

by djaytg » Thu Jan 10, 2013 10:08 pm

is there a difference between "never have been / have never been " ?
In OG 12 SC 14

Sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the surface of the Sun but have never been sighted on the Sun's poles or equater.
(A) are visible as dark spots on the surface of the Sun but have never been sighted on
(B) are visible as dark spots that never have been sighted on the surface of the Sun

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Source: Beat The GMAT — Sentence Correction | Thu Jan 10, 2013 10:08 pm

Jim@StratusPrep: MBA Admissions Consultant; Posts: 2279; Joined: Fri Nov 11, 2011 7:51 amFollowed by: 266 members; Location: New York; Thanked: 660 times; GMAT Score:770

by Jim@StratusPrep » Fri Jan 11, 2013 6:00 am

The focal point here is not the order of the words you point out, but rather where they occur in the sentence. B does not make sense because it says the spots are visible and have not been sighted. This is not possible because if they have not been sighted, there would be no way to know they are visible.

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GMATGuruNY: GMAT Instructor; Posts: 15539; Joined: Tue May 25, 2010 12:04 pmFollowed by: 1906 members; Location: New York, NY; Thanked: 13060 times; GMAT Score:790

by GMATGuruNY » Fri Jan 11, 2013 8:06 am

GMAC typically places an adverb BETWEEN the helping verb and the verb being helped. The following examples are all from OAs in the OG12:

are IN EFFECT told
it would IN THE PAST have conceded
have NEVER been sighted
can HARDLY be said
can CONSTANTLY change
have RECENTLY discovered
were EVENTUALLY exhibited
were FIRST aired
can QUICKLY analyze
would LATER make
are CLOSELY related
has ALREADY stimulated
is WIDELY accepted.

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