YOU SAID:

I do not have much knowledge

INTO JAPANESE

あまり知識がありません

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I don't have much knowledge

INTO JAPANESE

私はあまり知識がありません

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I don't know much

INTO JAPANESE

良くは知らないが

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I don't know much.

INTO JAPANESE

良くは知らないが

BACK INTO ENGLISH

I don't know much.