Each conditional sentence has an if clause, and a main clause.

每个条件句都有一个 if 子句，和一个主句。

Now, what about the if clause?

那么，if 从句呢？

We use a present tense in the if clause.

我们在 if 从句中使用现在时。

Notice we use the present tense in the if clause.

注意我们在 if 从句中使用现在时。

The " If clause" comes second, so there's no comma.

If 子句在第二个，所以没有逗号。

We often call them " if clauses" because they often begin the same way.

我们通常称它们为“if从句”，因为它们通常以 if 开头。

We're using a comma there, because the " If clause" comes first.

我们在那里使用逗号，因为 if 子句先出现。

It has two parts: the condition (if clause) and the result (main clause) .

条件（if 子句）和结果（main 子句）。

The " if" clause can go at the beginning of the sentence, or in the middle.

“If” 从句可以放在句首或者句中。

The 'if' clause and the main clause.

“if”子句和主句。

We have an 'if' clause and a main clause.

有一个“if”子句和一个主句。

If the " If clause" comes first, we need a comma, if it comes second, we do not.

如果 if 子句在前，我们需要逗号，如果它在后，我们就不需要逗号。

So our 'if' clause is happening in the past, right?

我们的“if”从句是发生在过去，对吧？

One is in the if clause, and one is in the main clause.

一在 if 子句中，一个在主句中。

We still have a hypothetical past action in the 'if' clause and the hypothetical present result in the main clause.

我们在“if”子句中还是有一个假设的过去行为，而假设的当前结果在主句中。

So the 'if' clause and the main clause in a mixed conditional sentence have different times that work together.

因此，混合条件句中的“if”从句和主句时间不同，然后搭配使用。

The if clause contains a condition and the main clause contains the result, right?

If 从句包含一个条件，然后主句里面包含的是结果，对吧？

And don't forget that like all conditionals, you can change the order of the 'if' clause and the main clause.

不要忘记，和所有的条件句一样，你可以改变“if”从句和主句的顺序。

In all conditional sentences, we have an 'if' clause and a result clause.

在所有的条件句中，我们会有一个“if”条件句和一个结果从句。

Or we could say the if clause at the end.

或者我们可以在最后说 if 子句。