I'd have nothing to do with him, if I were you.

如果我是你，我就不会跟他有任何瓜葛。

《牛津词典》

I hate to think what would have happened if you hadn't been there.

我不敢想你要是不在那里会出什么事。

《牛津词典》

I have to go out for a minute—will you cover for me if anyone asks where I am?

我得出去一会儿，假如有人问起我在哪里，你能为我搪塞一下吗？

《牛津词典》

And,if you are a very good person, I would even say that you have a heart of gold.

VOA: special.2010.07.11

Some others If I might have a right to X, do you have a duty to fulfill that for me?

其他的像如果我有某项权利，你有没有义务帮我实现？

普林斯顿公开课 - 人性课程节选

If you would like to express such desire which I assume most of you have to somebody else,

我想大多数人都跟别人表达过这种愿望，如果你想表达的话，

I want to 课堂 - SpeakingMax英语口语达人

MS. CROWLEY: If I could have you sit down, Governor Romney.

WHITEHOUSE: The White House

If I have disappointed you, I will always be sorry.

FORBES: Mitch Daniels Won't Run for President

We really service you to get you to where you need to be, even if I have to give you an extension and not paying me extra money I basically get you where you need to be.

FORBES: An Uncensored Interview with Millionaire Matchmaker Patti Stanger