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Until recently, trade flows were of interest mainly to economic expert [#permalink]
NandishSS wrote:
Until recently, trade flows were of interest mainly to economic experts and executives of large corporations, but since the past few years, the movement of goods and services across national boundaries have become the subject of intense public attention all over the world.

A. since the past few years, the movement of goods and services across national boundaries have become
B. the movement of goods and services across national boundaries since the past few years became
C. the movement across national boundaries of goods and services over the past few years have become
D. over the past few years, the movement across national boundaries of goods and services are becoming
E. over the past few years, the movement of goods and services across national boundaries has become


Subject verb error as pointed out by rohit1124 and CounterSniper ( Good username)

Until recently, trade flows were of interest mainly to economic experts and executives of large corporations, but over the past few years, the movement of goods and services across national boundaries has become

Hope this helps !!
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
Expert Reply
rohit1124 wrote:
Why is E the OA, goods AND services makes it plural but, the sentence uses the verb HAS.

Hi Rohit, as Abhishek has rightly pointed out, movement is the subject here.

A handy rule to remember is: In a clause, words in prepositional phrase will never be the subject of that clause.

Since goods and services is a part of prepositional phrase of goods and services, these words cannot be the subject of this clause. Hence, movement is the subject.

p.s. Our book EducationAisle Sentence Correction Nirvana discusses this concept of prepositional phrase, its application and examples in significant detail. If someone is interested, PM me your email-id, I can mail the corresponding section.
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
NandishSS wrote:
Until recently, trade flows were of interest mainly to economic experts and executives of large corporations, but since the past few years, the movement of goods and services across national boundaries have become the subject of intense public attention all over the world.+

A. since the past few years, the movement of goods and services across national boundaries have become
B. the movement of goods and services across national boundaries since the past few years became
C. the movement across national boundaries of goods and services over the past few years have become
D. over the past few years, the movement across national boundaries of goods and services are becoming
E. over the past few years, the movement of goods and services across national boundaries has become


in e, over+period of time show that this period lasts until presencej. so, present perfect is used. but over can go with a period of time in the past and then, past simple is used.
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
Could someone point out the difference betweeen since the past few years and over the past few years if there is any ?
If the original sentence had "HAS" instead of "HAVE" would that be correct ?
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
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Jat wrote:
Could someone point out the difference betweeen since the past few years and over the past few years if there is any ?
If the original sentence had "HAS" instead of "HAVE" would that be correct ?


"Since" refers to a point of time: e.g., I have been sick since last Friday. "Since" cannot refer to a period of time. Hence " since the past few years" would be wrong.

The subject of the verb "has" is "movement", which is singular. Hence using "have" would be wrong.
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
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NandishSS wrote:
Until recently, trade flows were of interest mainly to economic experts and executives of large corporations, but since the past few years, the movement of goods and services across national boundaries have become the subject of intense public attention all over the world.

A. since the past few years, the movement of goods and services across national boundaries have become
B. the movement of goods and services across national boundaries since the past few years became
C. the movement across national boundaries of goods and services over the past few years have become
D. over the past few years, the movement across national boundaries of goods and services are becoming
E. over the past few years, the movement of goods and services across national boundaries has become


Since we are talking about something that started in the past and continues in present, we need past perfect tense. B and D are out.

'The movement' needs singular verb 'has'

E is the only option with 'has'
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Until recently, trade flows were of interest mainly to economic expert [#permalink]
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Divyadisha wrote:
Since we are talking about something that started in the past and continues in present, we need past perfect tense.

Am sure this is a typo Divyadisha.

I can bet you meant present perfect tense :)
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
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NandishSS wrote:
Until recently, trade flows were of interest mainly to economic experts and executives of large corporations, but since the past few years, the movement of goods and services across national boundaries have become the subject of intense public attention all over the world.

A. since the past few years, the movement of goods and services across national boundaries have become
B. the movement of goods and services across national boundaries since the past few years became
C. the movement across national boundaries of goods and services over the past few years have become
D. over the past few years, the movement across national boundaries of goods and services are becoming
E. over the past few years, the movement of goods and services across national boundaries has become


The first point of elimination is the subject -verb agreement.
Here the subject is the "movement", which is singular.
Hence we need a singular verb.

Eliminate options A, C and D

Coming to Option B: This has a flaw in the meaning - the movement is still the subject of public attention, hence present perfect tense is needed

Correct Option: E
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
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Until recently, trade flows were of interest mainly to economic experts and executives of large corporations, but since the past few years, the movement of goods and services across national boundaries have become the subject of intense public attention all over the world.

In all the options, we have a time frame -> Since or over. A very good indication that we require a present perfect tense here.
Also, "the movement" is a particular movement and should be singular.

A. since the past few years, the movement of goods and services across national boundaries have become
B. the movement of goods and services across national boundaries since the past few years became
C. the movement across national boundaries of goods and services over the past few years have become
D. over the past few years, the movement across national boundaries of goods and services are becoming
E. over the past few years, the movement of goods and services across national boundaries has become -> Correct
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
NandishSS wrote:
Until recently, trade flows were of interest mainly to economic experts and executives of large corporations, but since the past few years, the movement of goods and services across national boundaries have become the subject of intense public attention all over the world.

A. since the past few years, the movement of goods and services across national boundaries have become
B. the movement of goods and services across national boundaries since the past few years became
C. the movement across national boundaries of goods and services over the past few years have become
D. over the past few years, the movement across national boundaries of goods and services are becoming
E. over the past few years, the movement of goods and services across national boundaries has become



over is time preposition which decides the tense of the verb. over+period of time shows a time frame from the past until present.

'over past few years" shows a time frame from a point of time a few years ago to present .
this time frame requires present perfect, which show an action begin in the past and continue until present.

remember
over + a period. over the last year is correct.
since+ a point of time in the past
this morning" can go with simple past or present perfect, depending on the context. if this morning is considered a past because time of speaking is afternoon, simple past is used. but if the morning continues until the time of speaking, the morning show a time frame until present, it requires present perfect.

this morning, I learned gmat (this morning I have learned gmat)

when we see time indicator, think about tense. this is simple. read a few lines in grammar book about time preposition and master this point
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
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Re: Until recently, trade flows were of interest mainly to economic expert [#permalink]
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