1，时间状语从句

when, whenever, since, till, once, as soon as, while, as, before, after

如：I will be a math teacher when I grow up.

2，条件状语从句

if, unless, as(so)long as

如：If I have extra money, I will pay the bill for you.

3，原因状语从句

because, since, as, for, now that

如：The tutor will leave here now that you have no problems.

4，让步状语从句

though, although, even if, even though, however

如：Though you have advantages in this match, I will not give up.

5，目的状语从句

in order that, so that, that

如：In order that Lily can get the prize, we will have a plan in detail.

在条件状语从句中，如果主语是一般将来时，从句要用一般现在时。

英语中的主将从现是指:

1、在if,unless 等词引导的条件状语从句;

2、在when,till/until,as soon as,before,after,as,while,each time,the moment等词引导的时间状语从句;

3、在no matter + wh-,however,whatever,whenever,even if/even though,so long as,on condition that等引导的让步状语从句中, 若主句为一般将来时(或包含情态动词/祈使句),从句谓语动词常用一般现在时表示将来

比如:I will call you as soon as she arrives. 当她来.