YOU SAID:

this is a very long sentence (not)

INTO JAPANESE

これは非常に長い文章です（そうではありません）

BACK INTO ENGLISH

This is a very long sentence (not quite)

INTO JAPANESE

これは非常に長い文章です（それほどではありません）

BACK INTO ENGLISH

This is a very long sentence (not much)

INTO JAPANESE

これは非常に長い文章です（あまり多くはありません）

BACK INTO ENGLISH

This is a very long sentence (not too many)

INTO JAPANESE

これは非常に長い文章です（多すぎません）

BACK INTO ENGLISH

This is a very long sentence (not too many)