0Hi,02br 02br 00I am confused as to the usage of the two phrases, "01i00a great knowledge02i00" and "01i00great knowledge02i00."02br 02br 00Will be content with some examples of their uses and the corresponding explanations as to why you used them as such.02br 02br 00I think I read in a previous post that someone said that this kind of phases are sometimes ( or most of the times) being used interchangeably. Is that true? 0-
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02br 02br 00paco0-
— Paco2004
02br 02br 00paco0-
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0 Hello02br 02br 00You can put "a" before "great knowledge of X".02br 00(01b00o02b00) He has great knowledge of medical science.02br 00(01b00o02b00) He has a great knowledge of medical science.02br 02br 00Otherwise, do not put "a" before "great knowledge"02br 00(01b0
0Thank you.02br 02br 00If I change the second pair of the sentences to include "in computer science," then would both sentences be OK?02br 02br 00(o) He showed great knowledge in computer science.02br 02br 00(o) He showed a great knowledge in computer science. 0-