I sometimes sit beside my brother and watch TV while he's eating breakfast in the morning.
I put a blanket beside my brother while he was sleeping.
ーI sometimes sit beside my brother and watch TV while he's eating breakfast in the morning.
「時々朝、弟が朝食を食べる横で座ってテレビを見る」
to sit beside my brother and watch TV while he's eating breakfast で「弟が朝食を食べる横で座ってテレビを見る」
ーI put a blanket beside my brother while he was sleeping.
「弟が寝ている横に毛布を置いた」
beside my brother while he was sleeping「弟が寝ている横に」
ご参考まで!
"While my brother is eating breakfast, I watch TV next to him."
- **"While my brother is eating breakfast, I watch TV next to him."**
(弟が朝食を食べている横で、私はテレビを見る。)
- **"I put a blanket beside him while he was sleeping."**
(彼が寝ている横に毛布を置いた。)
- **"She sat next to me while I was working."**
(私が仕事をしている横に彼女が座った。)
「○○している横で」「○○している横に」を英語で表現するには、**"while"** や **"next to"**, **"beside"** などを組み合わせると自然な表現になります。