YOU SAID:
i need to shampoo my hair good
INTO JAPANESE
私は良い髪をシャンプーする必要があります
BACK INTO ENGLISH
I need to shampoo good hair
INTO JAPANESE
私は良い髪をシャンプーする必要があります
BACK INTO ENGLISH
I need to shampoo good hair
You've done this before, haven't you.