YOU SAID:
You underrated my ability! Is!
INTO JAPANESE
あなたは私の能力を過小評価しました!です!
BACK INTO ENGLISH
You underestimated my ability! is!
INTO JAPANESE
あなたは私の能力を過小評価しました!です!
BACK INTO ENGLISH
You underestimated my ability! is!
That didn't even make that much sense in English.