"I want to go to the bathroom. I wish the class ended sooner!"

Translation: 我想去洗手间，希望快一点儿下课！

[Lodus2]

我要去洗手間 is totally fine among native speakers…

[Patrick_Dark]

Yet another question that doesn't accept an answer without erhua: "我想去洗手間，希望快一點下課！" ("一點" instead of "一點兒").

[jim140738]

" ended sooner" ? he peed already? :D couldn't it be "ends sooner" ?