I was furious at his [I was furious at him for] making such an accusation.
彼がそんな非難をしたのでとても腹が立った
I was going to do no such thing.
そんなことをするつもりはなかった(◆all,any,each,many,no,other,someや数詞はsuchの前に置く)
I was ignorant (of the fact) that my brother made you this offer.
弟があなたにこんな申し出をしていたとは気づかなかった
I was jealous of him, if you must know.
そんなに知りたければ教えるが,彼をねたんでいたんだ
I wasn't born yesterday.
(そんな手に乗るほど)うぶではない
I will let you know this secret.
こんな秘密を教えてあげる
I will [would] not deign to reply to such a question.
そんな質問に返事などしてやるものか
I will not, repeat not, allow you to make remarks like that.
おまえさんがそんなことを言うのは絶対に許さないぞ,絶対にな
I wish I had not done so.
そんなことしなきゃよかったのに
I won't descend to the level of such cheap accusations.
そんなつまらない非難をするようなばかなことはしない