我相信你能做到 英语

I trust you can do it!

...
I know you can make it!

上面各个都有 我相信你能做到的意思
并不只是 2 楼正确

我只能说 I believe you can do it 是中国人常说的。你明白我说什么吗？
不是 Chingish 但不是够地道。

情况就如中国人常说 I am sorry 但是外国人不会把 sorry 挂嘴边一样

I know you can do it!
I know you are capable enough to accomplish that.
YOU can do it for sure!
I believe that you can do it!

keithzjwang 没有chinglish只有不好的英文

I know you could do it
I belive you can cover it

trust me ,you can make it

I believe you can attain