YOU SAID:

My house is very big but yesterday we changed

INTO JAPANESE

私の家はとても大きいですが、昨日私たちは変わった

BACK INTO ENGLISH

My house is very big, but yesterday we changed

INTO JAPANESE

私の家はとても大きいですが、昨日変更しました

BACK INTO ENGLISH

My house is very big, but I changed it yesterday

INTO JAPANESE

私の家はとても大きいですが、私はそれを昨日変更しました

BACK INTO ENGLISH

My house is very big, but I changed it yesterday