YOU SAID:

I was thinking of taking a shower later

INTO JAPANESE

その後シャワーを浴びてを考えていた

BACK INTO ENGLISH

Taking a shower and then was thinking

INTO JAPANESE

シャワーを浴びていると、思って

BACK INTO ENGLISH

I don't think that taking a shower

INTO JAPANESE

シャワーを浴びてないと思う

BACK INTO ENGLISH

I do not take a shower

INTO JAPANESE

私はシャワーを浴びていません

BACK INTO ENGLISH

I do not take a shower