Its formula uses the past perfect in the conditional clause.

它的构成就是在条件句里使用过去完成时。

With Unless, usually you use the present tense in the conditional clause.

使用 Unless，你通常要在条件从句中使用现在时。

Either the main clause or the conditional clause can be at the beginning.

主句或条件句都可以位于句首。

But is it also possible to use " will" in the conditional clause?

但是是不是有可能在第一条件句中使用 “will” 呢？

No, you cannot use " will" in the conditional clause.

不对，你不能在条件从句中使用 “will”。

So, conditional sentences have two parts, the conditional clause and the main clause.

条件句有两个部分，条件从句和主句。

Conditional sentences consist of two parts: the conditional clause and the main clause.

条件句由条件从句和主句两部分组成。

When you start a conditional clause with As long as, it has a stronger meaning than " if" .

你开始在条件句中使用 As long as 时，它的含义比 if 更强。

The conditional clause tells you the condition and the main clause tells you the result of that condition.

条件句告诉你条件，主句告诉你条件的结果。

There are 12 questions in this part, you will identify the conditional clause or complete the sentence.

在这部分有12个问题，你将进行条件从句的识别或完成句子。

We've just said that the first conditional uses " if" in the conditional clause and " will" in the main clause.

我们刚刚已经说过，第一条件句在条件从句中使用 “will”。

" Will" can be used in the conditional clause when a person is being insistent or showing irritation at someone.

“Will” 可以用在条件从句中，当一个人很坚持或者对某个人表现出厌烦。

The sentence " If I would have more money, I'd upgrade my living situation" is not correct for the second conditional because it violates the standard structure of the conditional clause.

“If I would have more money，I'd upgrade my living situation”这句话对于第二条件句是不正确的，因为它违反了条件从句的标准结构。

Well, it's true that you don't need the word If to make conditionals, but you do need a conditional clause along with the main clause, or it won't make much sense.

确实，你不需要用 If 这个词来造条件句，但是，你确实需要在主句上附加一个条件句，否则它就没有多大意义了。

So I'm imagining a situation and in this type of sentence, use the past simple tense in the conditional clause and then should, would, might, could plus your verb in the main clause.

所以我在想象一个情景，那在这类句子中，在条件句中使用一般过去时，然后在主句中使用 should，would，might，could 加上你的动词。