Is this sentence correct?

Thank you so much for your kind reply.

Yes, I know both collaborate and to collaborate are fine.

But, if I should use with, which one is correct, with collaborating or with collaboration?

(In the given sentence, can with each other be acting as adjective phrase? Then I think both wi

But, if I should use with, which one is correct, with collaborating or with collaboration? (Neither works.)

Teechr's version is correct.

Thank you so much for your kind reply.

Then is this sentence also incorrect?

- He helped me with doing my homework.

Thank you so much.

- He helped me with doing my homework.
Then is this sentence also incorrect? (Yes, it is incorrect.)

Thank you for the reply.

Then is the following sentence correct?

- He helped me with my homework. (not including doing)

Thank you.

shcho23 Is the following sentence correct?- He helped me with my homework. (not including doing)

Yes, it's correct.

Thank you so much for the reply.

Then why is "Ambiguity can help people with diverse sets of opinions with collaboration with each other" incorrect?

Thank you.

with (preposition) collaboration (noun) with (preposition) is not grammatical.

collaborate (verb) with (preposition) each other is grammatical.

Thank you so much, and sorry for troubling you.

Then, is "Ambiguity can help people with diverse sets of opinions with collaboration." correct? (not with with each other).

But I keep wondering.. "with each other" is just an adverbial phrase, shouldn't a sentence be fine with or without it?

And what if I used, let's say "harmoniously", instead of "with each