I didn't know until I went to the live show but they are not good at singing
この文章が以下のように翻訳されています。
ライブに行くまで分からなかったが彼らは歌が下手です ー I didn't know until I went to the live show but they are not good at singing
ライブに行く ー I went to the live
まで ー until
分からなかった ー I didn't know / I wasn’t aware
が ー but
彼らは ー they are
歌が下手です ー not good at singing / bad at singing
参考になれば嬉しいです。
I didn't realize how bad they were at singing until I went to see them in concert.
I didn't know they weren't that good at singing until I saw them live.
ーI didn't realize how bad they were at singing until I went to see them in concert.
「コンサートで彼らを見に行くまで、彼らが歌が下手なことに気がつかなかった。」
didn't realize how bad they were at 動詞のing で「〜するのが下手だと気がつかなかった」
ーI didn't know they weren't that good at singing until I saw them live.
「彼らをライブで見るまで、彼らが歌があまりうまくないことを知らなかった。」
didn't know they weren't that good at singing で「彼らが歌があまりうまくないことを知らなかった」
ご参考まで！
オーストラリア 
カナダ 
