YOU SAID:

i have an exam i'm so gonna fail

INTO JAPANESE

試験があるので失敗するだろう

BACK INTO ENGLISH

I have a test and I'm sure I'll fail.

INTO JAPANESE

テストがありますが、きっと失敗します。

BACK INTO ENGLISH

There's a test, but I'm sure it will fail.

INTO JAPANESE

テストはあるけど、きっと失敗するだろう。

BACK INTO ENGLISH

There's a test, but I'm sure I'll fail.

INTO JAPANESE

試験があるけど、きっと落ちるだろう。

BACK INTO ENGLISH

I have a test, but I'm sure I'll fail.

INTO JAPANESE

試験があるけど、きっと落ちるだろう。

BACK INTO ENGLISH

I have a test, but I'm sure I'll fail.