YOU SAID:
Surely he had to have an ulterior motive for that. Yes, he was quite strange.
INTO JAPANESE
確かに彼はそのため不純な動機を持っていた。はい、彼は非常に奇妙だった。
BACK INTO ENGLISH
Certainly he had an ulterior motive for that. Yes, he is very strange.
INTO JAPANESE
確かに彼はその不純な動機を持っていた。はい、彼は非常に奇妙です。
BACK INTO ENGLISH
Certainly he had an ulterior motive. Yes, he is very weird.
INTO JAPANESE
確かに彼は不純な動機を持っていた。はい、彼は非常に奇妙です。
BACK INTO ENGLISH
Certainly he had an ulterior motive. Yes, he is very weird.
That didn't even make that much sense in English.