YOU SAID:
he didn't say thank you
INTO JAPANESE
彼はありがとうと言わなかった
BACK INTO ENGLISH
He didn't say thank you.
INTO JAPANESE
彼はあなたに感謝を言わなかった。
BACK INTO ENGLISH
He didn't thank you.
INTO JAPANESE
彼はあなたに感謝しませんでした。
BACK INTO ENGLISH
He didn't thank you.
Well done, yes, well done!