I can believe it.

我相信也是的。

youdao

I can do it because I believe I can do it.

我能做到，因为我相信我能做到。

youdao

I can scarcely believe it.

我几乎不敢相信。

《牛津词典》

I can't believe it, I don't believe it. Whatever they want to say, it's hogwash,".

VOA: standard.2009.07.24

Since I say you can believe you're going to die, yet you can't picture it from the inside.

既然我说你可以相信人是会死的，但是你无法想象那种感受。

耶鲁公开课 - 死亡课程节选

I can't bring myself to believe it, I have some sympathies for valuable container theories, but I also have some sympathy for neutral container theories.

我无法让自己去相信它，我有点赞同有价值容器理论，但是我也有点赞同中性容器理论。

耶鲁公开课 - 死亡课程节选

"I can believe it because of the guy sitting beside me, " said Clarke.

BBC: Clarke praises 'freakish' Hussey

"If it can be done safely, and I believe it can be, it would be far better to have a mix of safe seating and safe standing areas in places where clubs choose to offer such options, " he concluded.

BBC: MP calls for return of standing football terraces

"I can't really believe it and can't condone it, " he said.

BBC: York City's play-off win over Luton marred by violence