YOU SAID:

I do not happen not to be not extremely not unbelievably not quite not very not happy.

INTO JAPANESE

信じられないほど信じられないほど多くないというわけではないというわけではありません。

BACK INTO ENGLISH

It's not that it's incredibly incredibly large.

INTO JAPANESE

信じられないほど大きいというわけではありません。

BACK INTO ENGLISH

It's not incredibly big.

INTO JAPANESE

信じられないほど大きくありません。

BACK INTO ENGLISH

It is incredibly large.

INTO JAPANESE

非常に大きいです。

BACK INTO ENGLISH

It is very big.

INTO JAPANESE

それは非常に大きいです。

BACK INTO ENGLISH

It's very big.

INTO JAPANESE

とても大きいね。

BACK INTO ENGLISH

They are very big.

INTO JAPANESE

とても大きいね。

BACK INTO ENGLISH

They are very big.