YOU SAID:

if you are yawning you must be tired

INTO JAPANESE

あくび、あなたは疲れているに違いない

BACK INTO ENGLISH

Bet you're tired, yawn

INTO JAPANESE

あなたは疲れているに違いない、あくび

BACK INTO ENGLISH

I bet you're tired, yawn

INTO JAPANESE

きっとあなたは疲れてあくび

BACK INTO ENGLISH

I am sure you are tired, yawn

INTO JAPANESE

私は確信しているあなたは疲れている、あくび

BACK INTO ENGLISH

I'm sure you are tired, yawn

INTO JAPANESE

私は確信しているあなたは疲れている、あくび

BACK INTO ENGLISH

I'm sure you are tired, yawn