YOU SAID:

this room is very messy and requires extensive cleaning

INTO JAPANESE

この部屋はとても汚いと豊富なクリーニングが必要です。

BACK INTO ENGLISH

This room is very dirty and requires extensive cleaning.

INTO JAPANESE

この部屋が非常に汚れていると豊富なクリーニングが必要です。

BACK INTO ENGLISH

This room is very dirty and requires extensive cleaning.