從上文可以見到，句子有幾種：
Simple sentence (簡單句)：
句裏有一動詞、及一主體 (subject)。就用以前用過的例子：
· Ice cream is delicious.
(中)：雪糕好吃。
· I like eating ice cream.
(中)：我愛吃雪糕。
· I like apples and pears.
(中)：我喜歡蘋果和梨子。
· London tower is around the corner.
(中)：倫敦塔就在轉角那邊。
Double or Compound sentence (雙句或覆合句):
把兩個或多個同等地位的simple sentence 用 ‘and’, ‘or’, 或 ‘but’ 連串起來:
· Ice cream is delicious, and I like it.
(中)：雪糕好吃，而我喜歡它。
· Ice cream is delicious, and I like it, but ice cream is not a healthy food.
(中)：雪糕好吃，而我喜歡它，但雪糕不是健康食品。
· London tower is around the corner, but you have to walk up some steps.
(中)：倫敦塔就在轉角那邊，但你要攀登一些梯級。
這些句裏後面小句都有條件自成一句，而且與前面小句享有同等地位，如上面的 I like it 或 You have to walk up some steps。
Complex sentence (複雜句):
句裏具有一主句 (main clause)，及有一個或多個附屬句 (subordinate clause):
· I like eating ice cream although I should not be eating it.
(中)：我喜歡吃雪糕，雖然我不應吃它。
· London tower is around the corner where the tourists are standing.
(中)：倫敦塔就在轉角那邊，就是旅客們站著那兒。
· The state government resumed its threat to those councils which defied its order.
(中)：州政府重新向那些違背它指令的地區政府作出恐嚇。
下次我們會看看這些Clause 是什麽東西。
