Question

After rapidly winning for 3 years is correct sentance?

Answer 1

Answer:

no

it will be after rapid winning of three years

or

after rapidly win for three years

Answer 2

Answer:

Yes, It is a grammatically correct sentence although the word rapidly is not sounding good here. If the word randomly, or briskly is used instead of  rapidly here, it would have sounded better.

Here the word rapidly is working the function of adverb and it is qualifying the gerund winning, which is a noun but it works as a verb here.

Explanation: