YOU SAID:

James while john had a better effect on the teacher

INTO JAPANESE

ジェームズはジョンよりも先生に良い影響を与えた

BACK INTO ENGLISH

James had a better influence on his teacher than John.

INTO JAPANESE

ジェームズはジョンよりも先生に良い影響を与えた。

BACK INTO ENGLISH

James had a better influence on his teacher than John.