YOU SAID:

I thought people watched television so they didn't have to read.

INTO JAPANESE

私は人々がテレビを見ていたので彼らが読む必要がないと思った。

BACK INTO ENGLISH

I thought that they do not need to read because people were watching TV.

INTO JAPANESE

人々はテレビを見ていたので、読む必要はないと思いました。

BACK INTO ENGLISH

People were watching TV, so I thought it was not necessary to read.

INTO JAPANESE

人々はテレビを見ていたので、読む必要はないと思いました。

BACK INTO ENGLISH

People were watching TV, so I thought it was not necessary to read.