I'll happily help, if I can.

如果我能帮忙，我倒很乐意。

I'll ask my boss if I can have the day off.

我要问一下老板我能不能请一天假。

I'm going to live off campus if I can find somewhere cheap enough.

如果我能找到一个足够便宜的地方，我打算住在校外。

If I can kiss him, surely you can.

如果我可以吻他，你当然也可以。

If I can, you can.

如果我可以，你也可以。

If I can serve you in any way I shall be delighted.

如果我能以任何方式为您效劳，我将非常高兴。

I'd better take him his fan and gloves--that is, if I can find them.

我最好还是把它的扇子和手套给它——如果我能找到它们的话。

"It would be a major feat if I can make it through today," Ruth said.

“如果我能熬过今天，那将是一大壮举。”露丝说。

If I can imagine one thing without the other, they must be separate things.

如果我能想象某物独立于另一物存在，那它们就是彼此独立的。

As you only have a short stay in Shanghai, you probably will not be able to do much more sightseeing. But if I can help in any other way, please let me know.

由于您在上海只能做短暂停留，您可能无法做太多的观光。但如果我能在任何其它方面帮上您的忙，敬请告知我。

I'll see if I can call her for you.

我试试看能不能帮你叫她来。

I don't know if I can get it clean.

我不知道我能否把它清理干净。

I don't know if I can come but I'll try.

我不知道是否能来，但我尽可能来。

I'll see if I can scare up enough chairs for us all.

我来看看能不能给大家凑够椅子。

I'll see if I can grab the waitress and get the bill.

我来看能不能引起服务员的注意，让她拿账单来。

To tell the truth, I don't know if I can handle the job.

说实话，我不知道我能否做好这份工作。

But if I can interrupt, Joe, I don't think anybody here is personally blaming you.

恕我打断你，乔，我认为这里并没有人在怪你。

I wonder if I can become an artist.

我想知道我能否成为一名艺术家。

Before that, I can search online and see if I can find some advice for you.

在那之前，我可以上网搜索一下，看看能不能找到一些建议给你。

Lemme see if I can lift the box.

让我看看能不能把这箱子提起来。

Let me see if I can fix it.

让我看看能不能修好。

I wonder if I can board the plane with this return ticket.

我想知道我是否可以用这张回程机票登机。

I must take him in hand some day, and see if I can make something of him.

我总有一天要管教管教他，看看能不能把他管教好。

Now if I can stain in some way, if I can somehow label the DNA fragments that I'm interested in, I could find out where those fragments are on this gel.

现在如果我有染色的某种方法，如果玩可以以某种方式对我感兴趣的DNA片段进行标记，我就能知道这些片段在这凝胶板上的位置。

I'd like to go, but I'm not sure if I can find the time.

我想去，又怕没时间。

If I can help them, I'll try.

如果我能帮上忙，我会试试。

I either put it in if I can.

我要么能放就放进去。

Let me see if I can use that thing.

我来看看是否可以用这个投影仪。

I don't know if I can pass it.

我不知道自己能不能通过呢。

Oh, let's see if I can make it easier.

让我看看能否把它变得容易些。