YOU SAID:
You could say that again
INTO JAPANESE
もう一度それを言うこともできます
BACK INTO ENGLISH
you can say it again
INTO JAPANESE
もう一度言ってもいいよ
BACK INTO ENGLISH
I can say it again
INTO JAPANESE
もう一度言えます
BACK INTO ENGLISH
I can say it again
Come on, you can do better than that.