狀語是主要是修飾謂語的，狀語從句也不例外。
狀語作為副詞還可以修飾別的成分，如定語、狀語、非謂語動詞和整個句子。
狀語從句主要有以下九種，也就是表示謂語動詞可以被從九個不同的方面被修飾：
什麼時候做
什麼地點做
在什麼條件下做
為了什麼目的做
用什麼方式做
和誰對比著做
即使發了什麼也得做
做了有什麼結果
等等等
狀語從句類型
常用的引導詞
常用的時間狀語引導詞及釋義
詳解
when
在我小時候，我喜歡聽收音機
when表示at that moment，when引導的從句用一般現在時表將來。
I will tell you when you finish your work. 當你把工作完成後，我將會告訴你。主將從現。
I was talking with my mother when the rain arrived. 大雨來臨時，我正在和媽媽說話。主過從過。
You can call me your friend when you behave like a friend. 當你做的像個朋友時，你再把我稱為你的朋友吧。主現從現
我覺得複合句的“主句一般現在時，從句時態不限”的規律不能應用在when引導的從句裡。
I tell you I had been married. 我告訴你，我早已結婚了。主句一般現在時，從句過去完成時作為賓語從句有意義。但在狀語從句裡，沒意義。我覺得該主現從現。
before
before 引導的從句用一般現在時表將來。
We will finish the project before winter comes. 我們將在冬天來臨之前完成這項工程。
The train had left before they arrived the station. 在他們趕到火車站之前，火車已經開走了。
after
用一般現在時表將來。
I will visit you after this semester finishes. 這個學期結束後，我將去訪問你。
You can have your lunch after I leave。我走後你才可以吃飯。
while, as
持續性動作用這兩個
I was cooking, while he was playing video games. 在我做飯時，他在打遊戲。
As we were saying goodbye to him, we began to shed tears. 當我們和他說再見時，我們開始流淚。
by the time
主句用完成時
The thief had run away by the time the police arrived. 警察來的時候，小偷已經跑了。
I will have been starved by the time you arrive. 等著你來，我早被餓死了。
till until
只跟一般現在時和一般過去式，用一般現在時表將來。 till一般只用於口語
I will wait for you till you change your mind. 我會一直等你，直到你改變主意。
since
自從
He has been drunk 7 days a week since his girl friend left him. 自從女友離開後，他就成了個一週醉七天的醉鬼。
My family have lived in the city since the 1990s. 從上世紀90年代開始，我家就在城市裡居住了。
as soon as
在某事發生後立即發生，主將從現
I will pay you as soon as you deliver the goods. 你發貨後，我馬上付錢。
Please call me as soon as you arrive. 在你到達後，請馬上給我電話。
Whenever, every time
Whenever you appear in front of me, I feel disgusted. 每當你出現在我面前，我就覺得噁心。
Every time you go away, you take a piece of me with you. 每次你離開，都讓我的心殘缺不全。
The +序數詞+time
The first time I saw the Yangtze River, I was intimidated by its grandness. 第一次見長江，我就被它的雄偉鎮住了。
The second time I met her, I fell in love with her. 第二次和她見面，我愛上她。