回答
- "Before I knew it, I was asleep."
- "Before I realised it, they were fast asleep."
"Before I knew it, I was asleep." "before I knew it" 「気が付いたら」・「いつの間にか」"I was asleep" 「私が寝ていた」"Before I realised it, they were fast asleep." "before I realised it" 「気が付いたら」"they were fast asleep" 「彼は寝ていた」"fast asleep" 「爆睡」"sound asleep" も言えます。"I was watching T.V and before I knew it, I was fast asleep." 「テレビを見ていたら、いつの間にか寝てしまった」[これも](http://eikaiwa.vntkg.com/uknow/questions/122161/)役に立つかもしれませんので是非クリックしてください。
回答
- I was watching TV and before I knew it, I had fallen asleep.
- I was watching TV and fell asleep without even realizing it.
この場合、次のような言い方ができます。ーI was watching TV and before I knew it, I had fallen asleep.「テレビを見てたら、気がついたら寝てた」before I knew it, I had fallen asleep. で「気がついたら寝ていた」と言えます。ーI was watching TV and fell asleep without even realizing it.「テレビを見てたら、知らない間に寝てた」to fall asleep without even realizing it で「知らない間に寝る」と言えます。ご参考まで!
回答
- I fell asleep without knowing when.
英会話講師のKOGACHIです(^^)/おっしゃられている内容は、I fell asleep without knowing when. 「いつの間にか寝てしまった」のようにも表現できると思いました(*^_^*)以上ですm(_)m少しでも参考になれば幸いです(#^^#)お困りの時は、いつでも気軽にご質問ください(^0^)/★★どうぞよろしくお願いもうしあげます★★see you soon♪