介係詞「雖然、但是、儘管」後只能搭配「名詞」。
 介係詞及連接詞「雖然、但是、儘管」用法如下： [連接詞] but / while / although / though / whereas + S + V
 使用時應注意以下三點：
[連接詞] in spite of the fact that + S + V / despite the fact that + S + V / for all that + S + V
[介係詞] in spite of N / despite N （可參考：文法講座十五）
[介係詞] with all N / for all N
 「雖然、但是、儘管」連接詞不可聯用，如：有了 although，就不能有 but。且連接詞 although / though / while / whereas 放句首時，需加逗號。

例句：雖然我數學課遲到了，但是我還是決定出席。
(X) Although I was late for the math class, but I decided to go anyway.
(O) Although I was late for the math class, I decided to go anyway.
(O) I decided to go anyway although I was late for the math class.
(O) I was late for the math class, but I decided to go anyway.
 連接詞 “but” 不可放首。
 (X) But I decided t go anyway, I was late for the math class.
(O) I was late for the math class, but I decided to go anyway.
 「雖然、但是、儘管」連接詞後須加「句子」，句子必備條件為：主詞 + 動詞。而介係詞「雖然、但是、儘管」後只能搭配「名詞」。
 例句：雖然她重感冒，但是她還是去上班。
[連接詞] Though she had a bad cold, she went to work.
[連接詞] She went to work although she had a bad cold.
[連接詞] She had a bad cold, but she went to work.
[連接詞] She went to work despite the fact that she had a bad cold.
[介係詞] She went to work in spite of a bad cold.
[介係詞] With all her bad cold, she went to work.
[特殊句型] adj/ adv/ N + as + S1 + V1, S2 + V2 （可參考：文法講座十三）
Sick as she was, she went to work.