YOU SAID:

I ate a very big dinner last night

INTO JAPANESE

最後の夜の非常に大きな夕食を食べた

BACK INTO ENGLISH

Ate a big dinner last night so

INTO JAPANESE

だから昨夜大きな夕食を食べた

BACK INTO ENGLISH

So I had big dinner last night

INTO JAPANESE

最後の夜の大夕食会をしていたので

BACK INTO ENGLISH

Because it had a big dinner last night

INTO JAPANESE

それは大きな夕食の最後の夜を持っていたので

BACK INTO ENGLISH

Because it had a big dinner last night