1)动名词的时态形式
一般式writing
完成式having written
2)动名词的一般式动名词的一般式所表示的动作与谓语动词表示的动作同时发生，或在谓语动词表示的动作之后。如：
Children enjoy watching colour TV. 儿童喜欢看彩色电视。
(enjoy与watching同时)
Would you mind opening the window and letting a little a air in?请你打开窗子，透透气好吗? (opening和letting发生在mind之后)
注意下面两句中动名词所表示的动作发生在谓语动词表示的动作之前。如：
Do you remember cutting rice on the state farm? 你记得在国营农场割水稻的事吗? (cutting发生在remember之前)
I shall never forget seeing Lu Xun for the first time in 1932.我永远不会忘记一九三二年第一次见到鲁迅的情景。(seeing发生在 forget之前)
3)动名词的完成式动名词的完成式所表示的动作发生在谓语动词表示的动作之前。
I regret having been unable to write to you earlier.我很抱歉未能早点写信给你。
His leg showed no symptom of having been injured.他的腿不像受过伤。
We were overjoyed at the news of China haying launched another man-made satellite.我们听到中国又发射了一颗人造卫星时都很高兴。
动名词的被动语态
动名词有两种被动语态形式：
一般式being written
完成式having been written
例：
This picture shows a child being beaten by a Japanese soldier.这张照片上一个孩子在遭到日本兵毒打。
The meeting was put off without his having been consulted.会议延期并未和他商量。
