YOU SAID:

I bet I can solve the cube faster than you can!

INTO JAPANESE

私はあなたよりも早く立方体を解くことができるに違いない!

BACK INTO ENGLISH

I bet I can solve the cube faster than you!

INTO JAPANESE

私はあなたよりも早く立方体を解けるに違いない！

BACK INTO ENGLISH

I'm sure I can solve the cube faster than you!

INTO JAPANESE

私はあなたよりも早くキューブを解けると確信しています！

BACK INTO ENGLISH

I'm sure I can solve the cube faster than you!