"We might be able to sit down after."
"we" 「私たちは」
"might be able to sit down" 「座れるかも」
"after" 「あの後」"afterwards" も使えます。
"The children might get off soon so we might be able to sit down soon."
「子供達が多分近くで降りそうだから、私達すぐ座れるかも」
"After that we might be able to sit down."
"after that" 「あの後」
"Those kids look like they will get off soon, so after that we might be able to sit down."
「あの子供達が近くで降りそうだから、私達あの後座れるかも」
We can probably sit where they are after they get off the train.
Looks like those kids might be getting off soon. Maybe we can sit where they are if they do.
この場合、次のような言い方ができます。
ーWe can probably sit where they are after they get off the train.
「彼らが(電車から)降りたら、彼らの座っているところに座れるかも」
to get off the train で「電車を降りる」
ーLooks like those kids might be getting off soon. Maybe we can sit where they are if they do.
「あの子たちもうすぐ降りるみたい。降りたらあの子たちの座っているところに座れるかも」
to sit where they are で「彼らのところに座る」
ご参考まで!