YOU SAID:

you were right about one thing, the negotiations were short

INTO JAPANESE

あなたは1つのことについて正しい、交渉は短かった

BACK INTO ENGLISH

You are right about one thing, negotiations were short

INTO JAPANESE

あなたは一つのことについて正しいです、交渉は短かったです

BACK INTO ENGLISH

You are right about one thing, negotiations were short