有一類動詞，如deny, admit, apologize, confess, excuse, forget, forgive, recall, regret, remember, thank等動詞后接動名詞時，其本身得動作總是在動名詞得動作之后發生，所以，其后得動名詞一般形式和其后得動名詞得完成形式都可以表示其動作發生在謂語動詞所表示得動作之前。

Upon being questioned he denied writing the article.

Upon being questioned he denied having written the article.

一經詢問，他否認寫了這篇文章。

She admitted driving the car without insurance.

She admitted having driven the car without insurance.

她供認駕駛了這輛沒有保險得轎車。

I admit seeing it.

I admit having seen it.

我承認看到過它。

I apologize for being late

I apologize for having been late

我為自己得遲到致歉。

I must confess to knowing nothing about computers.

I must confess to having known nothing about computers.

我得承認對電腦一竅不通。

He confessed to being a bundle of nerves.

He confessed to having been a bundle of nerves.

他承認自己一直神經極度緊張。

Her husband confessed to having an affair

Her husband confessed to having had an affair

她丈夫承認有過外遇。

His excuse for forgetting her birthday was that he had lost his diary.

His excuse for having forgotten her birthday was that he had lost his diary.

他辯解說因為日記本丟了才忘了她得生日。

I'll never forget hearing this piece of music for the first time.

I'll never forget having heard this piece of music for the first time.

我永遠不會忘記第壹次聽到這首曲子得情景。

Looking at the crowds out shopping, you could be forgiven for thinking that everyone has plenty of money.

Looking at the crowds out shopping, you could be forgiven for having thought that everyone has plenty of money.

見到人們成群結隊地外出購物，難怪你會以為人人都很富有。

Looking at the figures, you could be forgiven for thinking the recession is already over.

Looking at the figures, you could be forgiven for having thought the recession is already over.

看看這些數字，難怪你會覺得經濟衰退已經結束了。

Forgive him for being late.

Forgive him for having been late.

請原諒他得遲到吧。

I can't recall meeting her before.

I can't recall having met her before.

我想不起來以前曾經見過她。

He bitterly regretted ever mentioning it.

He bitterly regretted ever having mentioned it.

他非常懊悔提起那件事。

I remember reading the newspaper aloud to my father at five.

I remember having read the newspaper aloud to my father at five.

我記得在5歲得時候大聲給父親讀報紙。

I do thank you for doing the job for us.

I do thank you for having done the job for us.

真感謝你為我們做了這件事。

關于這個考點學習融會貫通了感謝，你可以一路考到博士都沒有問題了。