YOU SAID:
How fast can you run in an hour?
INTO JAPANESE
1時間でどれくらい速く走れますか?
BACK INTO ENGLISH
How fast can you run in 1 hour?
INTO JAPANESE
1時間でどれくらい速く走れる?
BACK INTO ENGLISH
How fast can you run in 1 hour?
You've done this before, haven't you.