YOU SAID:
I wish we could have done this better
INTO JAPANESE
私たちがこれをもっとうまくやれたらいいのに
BACK INTO ENGLISH
I wish we could do this better
INTO JAPANESE
私たちはこれをもっとうまくやることができればいいのに
BACK INTO ENGLISH
I wish we could do this better
You've done this before, haven't you.