@coucou 我想我很快就会放弃。

@WILLSHUANG Your explanation has pretty much solved the problem for me. Thank you! :)

能和要表达的意思相近，但不一样 我想等你回来，却不知道我究竟能等到什么时候。--- "I want to wait you back, but I don't kown how long I can wait" it means you are the person who may give up. 我想等你回来，却不知道我究竟要等到什么时候。--- "I want to wait you back, but I don't kown how long I should wait" it means you may not give up, you just fell sad because you don't konw how long you should wait.

为什么要等？