Verb tense confusion

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Verb tense confusion

by dadou » Wed Jun 22, 2011 11:32 am
Hi guys, i went through the manhattan flash card sentence correction and i came across sth i still dont understand. i am supposed to identify the errors in this sentence:
If my mother did not attend the London School of Economics, she might not meet my father, and i might not have been here now.
and the correct sentence is: If my mother had not attended the London School of Economics, she might not have met my father, and i might not be here now

i dont understand why they used have met, i believe that they should have used the past tense met because the mother and the father met in the past once and it stopped there, how can it be a coninuous action?
Another thing, they didnt really explain why they used might not be .im really confused
Source: — Sentence Correction |

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by VivianKerr » Wed Jun 22, 2011 4:10 pm
Hi Dadou,

The past perfect ("have" or "had") can be used to refer to something that has taken place even further back in the past than another incident.

Let's think of the sequence of events, and ask: which came first?

FIRST, the mother went to the school.
THEN, she met the father.
NOW, the child is here.

Starting with the phrase "here now" at the end of the sentence, we know we need present tense, since "now" is in the immediate present.

"be" = simple present

The question tests the verb construction, and since the phrase "might not" is used twice it is correctly parallel and not an issue here.

Even though "met" is the past tense of "meet", we cannot say "She might not met my father." We need the word "have" since the clause already has the word "might."
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by dadou » Wed Jun 22, 2011 10:24 pm
Thanks a lot, your explanation is very clear. i really like this website

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