YOU SAID:

I had to do a lot of chores today, so I couldn't watch the movie.

INTO JAPANESE

今日は家事をたくさんしなければならなかったので、映画を見ることができませんでした。

BACK INTO ENGLISH

I had to do a lot of housework today, so I couldn't watch the movie.

INTO JAPANESE

今日は家事をたくさんやらなくてはならなくて、映画が観れませんでした。

BACK INTO ENGLISH

I had to do a lot of housework today, and I couldn't watch a movie.

INTO JAPANESE

今日は家事をたくさんしなくてはならず、映画も観れませんでした。

BACK INTO ENGLISH

I had to do a lot of housework today, and I couldn't watch a movie.