Ali learned most quickly than Ghassan
Yes, it's an adverb modifying the adverb 'quickly'. It is the wrong word to use, however. When you are comparing two things, Ali and Ghassan in this case, you use the comparitive 'more' rather than the superlative 'most'.
Ali learned more quickly than Ghassan
|link comment||answered Nov 03 '13 at 09:29 Lewis Neidhardt Grammarly Fellow|
Hero of the day
Person asked the most questions.