Question

ℎ

『もしあの時Allisonが彼のアドレスを知っていたなら、君にそれを教えることが出来ただろうに』を英語に書き換える場合、『If Allison had know his address,she could have let you know it.』ではなく、『If Allison had known his address,he could have told you.』では不正解ですか？