posted by rfvv .
1. He has learned Chinese this year.
2. He has learned Chinese for three months this year.
(Is the meaning of "has learned' the same in #1 and #2? If it is November, does #1 mean that he is learning Chinese in Novemver? How about in #2?)
Yes. He has learned is the Present Perfect tense. The auxiliary (helping) verb is a form of to have and it is followed by a past participle, often ending in -ed.