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example one:
A): I love the small town in which I lived during my childhood.
B): I love the small town which I lived in during my childhood
here, sentence A = sentence B (because "in which I lived" and "which I lived in" are interchangable.
example two:
C): This is the thread in which I enjoyed the most in this forum so far.
D): This is the thread which I enjoyed in the most in this forum so far.
here, both sentences are grammatically wrong because of "in".
example three:
E): This is the thread in which I wrote few words that were offensive.
F): This is the thread which I worte in few words that were offensive.
here, sentence E = sentence F (because "in which I wrote" and "which I wrote in" are interchangeble.
1): Kindly correct possible wrong-sentence-structure in the above sentences (if there is any).
2): Kindly explain what's wrong with "in" in sentence C and D (though I know it's wrong, but I don't know how to explain it).
3): Could you rewrite sentence E and F to make them more stand out!
Your help is very much appreciated
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As for C and D, compare with A and B.

You live in a town, but you don't enjoy in a thread.
You don't live a town, but you enjoy a thread.

E and F need some changes. I'm guessing you meant the following.

E): This is the thread in which I wrote a few words that were offensive.
F): This is the thread which I wrote a few words in that were offensive.

from I wrote a few words in the thread (It's not I wrote in a few words the thread).

CJ
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As for C and D, compare with A and B.

You live in a town, but you don't enjoy in a thread.
You don't live a town, but you enjoy a thread.

E and F need some changes. I'm guessing you meant the following.

E): This is the thread in which I wrote a few words that were offensive.
F): This is the thread which I wrote a few words in that were offensive.

from I wrote a few words in the thread (It's not I wrote in a few words the thread).

CJ
Thank you very much

Best Regard,

Nokia88
Thanks!
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