如果我们提到的是过去的行为，可用这一形式而不用动名词的一般式(working，speaking等)：

　　He was accused of deserting his ship./He was accused of having deserted his ship.

　　他被控弃船逃跑。

　　在deny后常用动名词的完成式：

　　He denied having been there.

　　他否认曾经到过那儿。

　　在其他动词后面一般式更为常用。