YOU SAID:
This is about me customers.
INTO JAPANESE
これは私の顧客についてです。
BACK INTO ENGLISH
This is about my customer.
INTO JAPANESE
これは私の顧客です。
BACK INTO ENGLISH
This is my customer.
INTO JAPANESE
これが私の顧客です。
BACK INTO ENGLISH
This is my customer.
You've done this before, haven't you.