YOU SAID:
Johnny is so cool that you cannot comprehend
INTO JAPANESE
ジョニーはとてもかっこいいので理解できません
BACK INTO ENGLISH
Johnny is so cool that I don't understand
INTO JAPANESE
ジョニーはとてもかっこいいので理解できません
BACK INTO ENGLISH
Johnny is so cool that I don't understand
You've done this before, haven't you.