Confusion over the Verb tense in a sentence


Hi there:

Can anyone tell me if the following tense of the sentence is correct?

If i use a past tense "studied" first, can i still use the present perfect tense "has learnt" later or others? Thanks for your help


But, during the time he studied independently at Athenian, he has gradually learnt to take into account all subjects, and as a result his performance improved evenly among all courses.

Min Wei



asked Aug 15 '11 at 01:18 Rick New member

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