YOU SAID:
on monday i cleaned my room
INTO JAPANESE
月曜日に私は私の部屋をきれいにしました
BACK INTO ENGLISH
On Monday I cleaned my room
INTO JAPANESE
月曜日に部屋を掃除しました
BACK INTO ENGLISH
I cleaned the room on Monday
INTO JAPANESE
月曜日に部屋を掃除しました
BACK INTO ENGLISH
I cleaned the room on Monday
Come on, you can do better than that.