YOU SAID:

Co what? did i underctand that i underctood it?

INTO JAPANESE

一体何？私はそれを理解したことを理解できましたか？

BACK INTO ENGLISH

What the heck? Did you understand that I understood that?

INTO JAPANESE

一体何ですか？あなたは私がそれを理解したことを理解しましたか？

BACK INTO ENGLISH

What on earth is it? Did you understand that I understood it?

INTO JAPANESE

一体何ですか？私がそれを理解したことをあなたは理解しましたか？

BACK INTO ENGLISH

What on earth is it? Did you understand that I understood it?