主語從句通常由連詞that和whether、連接代詞或連接副詞以及關係代詞型what引導。
1. that引導
That he is still alive is a wonder. 他還活着，真是奇蹟。
That we shall be late is certain. 我們要晚了，這是確定無疑的。
That he should have ignored the working class was natural. 他忽視工人階級是很自然的。
That she is still alive is a consolation. 她還活着是使人感到寬慰的。
That she became an artist may have been due to her fathers influence. 她成爲畫家可能是受她父親的.影響。
That you are coming to London is the best news I have heard this long time. 你將來倫敦是好久以來我聽到的最好消息。
That she was chosen made a tremendous stir in her village. 她被挑選上，在她村 子裏引起很大轟動。
2. whether引導
Whether it will do us harm remains to be seen. 是否對我們有害還要看一看。
Whether they would support us was a problem. 他們是否會支持我們還是一個問題。
3. 連接代詞引導
Whoever is top from wins the game when two matched players meet. 兩強相爭勇者勝。
