Grammar: Mixing conditionals - BBC English Masterclass

Hi guys. Dan from BBC Learning English here. In this session we'll be looking at mixed

conditionals. Now, I know that clever students like yourselves will know that English has

three types of conditional sentences. First conditional is to talk about real, present

or future situations, second conditional is to talk about hypothetical present or future

situations and third conditional is to talk about hypothetical past situations. All three

types of conditional are fantastic and all three types of conditional talk about events

within their own time frame - present, future and past. But what about if you want to talk

about an event that happened in the past - which affects the future? Can events in the present

or the future affect the past?

Come over here and let's take a look. Here is a third conditional sentence:

If I had taken programming at school, I would have got a job at Google years ago.

Here we have a past hypothetical with a past consequence. Notice the formula: 'If' plus

the past perfect here, 'would' plus have plus the past participle here. Now watch what happens

as we change the consequence.

If I had taken programming at school, I would be working for Google.

Now we have a past hypothetical with a present consequence. This part here is from a second

conditional. Its formula is 'would' plus the bare infinitive. This kind of makes sense

in that decisions or actions in the past affect the present. But can we do the future? Well,

let's have a look.

If I had taken programming at school, I would be attending the Google conference next week.

Yes we can. As you can see, the only difference between the present and the future is the

time expression. The formula is exactly the same: 'would' plus the infinitive. Second

conditional. Did you get it? Now let's see what happens if we try to make the second

- which is the present - affect the past, which is a third.

If I were smarter, I would have invented something clever when I was younger.

It can. Now we have a present theory with a past result. This can be a little difficult

to understand, until we realise that 'if I were smarter' is the same as saying 'I am

not smart' - which is present simple. And remember that we use present simple for long

term truth. When I say 'I am not smart', I mean: I am not smart now, in the future and

in the past. It's the same as saying 'I am English' - past, present and future. So, this

kind of conditional works very well with personal descriptions. And here are a couple of other

examples.

If he were taller, he would have become a basketball player.

If they were in love, they would have got married 10 years ago.

And if I were less interesting, I wouldn't have been asked to speak in public so many times.

Did you get it? Good. Let's try one more. Present to past. But a little bit more specific

this time.

If I weren't flying on holiday next week, I would have accepted that new project at

work.

Here we have a present second, although it's actually future, with a past third result.

This means that the person couldn't accept the project at work because they knew that

they would be flying in the future. OK guys, did you get it? Mixing conditionals isn't

difficult to do, as long as you both have confidence and an understanding of the verb

forms. It's much easier to do a third to second than it is to do a second to third, but both

are possible. And finally, don't forget the importance of time words. OK? Alright.

Now, for more information have a look at bbclearningenglish.com. I've been Dan, you've been great. Have fun

guys, see you next time.