YOU SAID:

I imagine that it would be impossible for me to finish my homework today

INTO JAPANESE

今日は宿題を終わらせるのは無理だと思います

BACK INTO ENGLISH

I don't think it's possible to finish my homework today

INTO JAPANESE

今日は宿題を終わらせることができないと思います

BACK INTO ENGLISH

I don't think I can finish my homework today

INTO JAPANESE

今日は宿題を終わらせることができないと思います

BACK INTO ENGLISH

I don't think I can finish my homework today