YOU SAID:
I'm working from tomorrow
INTO JAPANESE
明日から働いています
BACK INTO ENGLISH
I'm working from tomorrow.
INTO JAPANESE
私は明日から働いています。
BACK INTO ENGLISH
I have been working since tomorrow.
INTO JAPANESE
私は明日から働いています。
BACK INTO ENGLISH
I have been working since tomorrow.
You've done this before, haven't you.