YOU SAID:

i once was a little girl

INTO JAPANESE

私はかつて小さな女の子でした

BACK INTO ENGLISH

I used to be a little girl

INTO JAPANESE

私は小さな女の子でした

BACK INTO ENGLISH

I was a little girl

INTO JAPANESE

私はまだ幼い女の子だった

BACK INTO ENGLISH

I was just a little girl.

INTO JAPANESE

私はまだ幼い女の子だった

BACK INTO ENGLISH

I was just a little girl.