YOU SAID:
I am not a bird, dad.
INTO JAPANESE
鳥ではない父さん。
BACK INTO ENGLISH
My father is not a bird.
INTO JAPANESE
私の父は、鳥ではないです。
BACK INTO ENGLISH
My father is not birds.
INTO JAPANESE
私の父は、鳥ではないです。
BACK INTO ENGLISH
My father is not birds.
You've done this before, haven't you.