The following sentence comes from a piece of article I've mentioned before in another thread of mine: http://www.usingenglish.com/forum/as...tml#post692551
I've read someone wrote "this new project gains momentum" (without a "in" inbetween)But in dealing with the young, the fact of association itself as an immediate human fact, gains in importance.
Since "gains in importance" was written by Mr. John Dewey, and "gains momentum" by a top journalist, I suppose both usages are grammatically right, aren't they?
What's the subtle differences of using "in" or not? I can sort of sense it but can not clearly express it.
gains momentum = acquires momentum- could be from stationary
gains in importance = increases importance- already had some importance at the start