In today's lesson, we're going to look at conditional sentences, also called 'if' sentences.

Now, in some languages, conditional is a verb form that you conjugate.

But in English, when we say conditional, we are referring to a two-part sentence where one part begins with if.

There are quite a few forms of conditionals in English, but there are four main ones. These are conditionals 0, 1, 2 and 3.

And we're going to focus on these four forms because the others are rarely used.

It's important to learn the formulation and the usage of these four forms clearly.

By the end of this video, you will have a good idea of what the differences are both in terms of form and usage.

So, when you're ready, we can begin.