遺憾用英語怎麼寫

你不能再多停留些時間，真是遺憾。

It's a pity that you can't stay longer.

我很遺憾，他不接受那項工作。

He didn't accept the job, I'm sorry to say.

我只能遺憾地告訴你，你不及格。

I'm sorry to have to tell you you've failed.

我很遺憾美國也附和了這樣的抗議。

I regret that the United States has added its voice to such protests.