YOU SAID:

Your dad must have drugged those hamburgers.

INTO JAPANESE

お父さんがハンバーガーを飲んだんだろう

BACK INTO ENGLISH

Your dad must have drunk a hamburger.

INTO JAPANESE

あなたのお父さんはハンバーガーを飲んだに違いない。

BACK INTO ENGLISH

Your father must have drunk a hamburger.

INTO JAPANESE

あなたのお父さんはハンバーガーを飲んだに違いない。

BACK INTO ENGLISH

Your father must have drunk a hamburger.