善(よ)くもHow dare ..., How could ...

お前(まえ)は詐欺(さぎ)師(し)だ！善(よ)くも騙(だま)したな！

You're a fraud! How dare you deceive me! {How dare ..., How could ...}

よくも殴(なぐ)ったな？お前(まえ)を絶対(ぜったい)に許(ゆる)さないぞ！

How dare you hit me? I will absolutely never forgive you! {How dare ..., How could ...}

お米(こめ)を五(ご)合(ごう)…君(きみ)は善(よ)くもそんなに食(た)べたものです。

Five cups of rice... How could you possibly eat that much? {How dare ..., How could ...}

上司(じょうし)：「よくも上司(じょうし)である私(わたし)に向(む)かってそんな態度(たいど)が出来(でき)るね。」

Boss: "How dare you show such an attitude towards me, your superior." {How dare ..., How could ...}

母(はは)が娘(むすめ)に：「善(よ)くもこんなに部屋(へや)を散(ち)らかして…さっさと片付(かたづ)けなさい！」

The mother said to her daughter: "How dare you mess up the room like this... Clean it up right away!" {How dare ..., How could ...}