Perfect infinitive?

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hello

I sometimes acroos this subject,perfect infinitive
but i really dont understand,,can you tell me please.

I learned that after "to" ,,,there must be bare infinitive,,but here different.
thanks.
TURKLAND
Full Member 208
the biggest football team of all times "FENERBAHCE"
Hello RK

Do you mean you want to know the usage of ?

There seem two usages for .

1) Used to indicate the time relation between main and infinitival actions.
(1) He is said to have tried to suicide several times when young.
(2) When he met her, he pretended to have divorced from his wife.
(3) I am sorry not to have written you sooner.

2) Used to indicate the infinitival action was not actually performed.
(1) We hoped to have won the game. (Actually we lost it).
(2) We were to have met yesterday, but he cancelled it.

paco
Senior Member 4,095
In Japan today even dogs are learning how to bow-wow in English.
In the perfect infinitive the action takes place prior to the tense of the root or base verb:

A present infinitive: She wants-to hit-the ball.
A perfect infinitive: She would like-to have hit-the ball at least once. (hit is the root verb and is present tense, but the infinitive action took place in the past)
New Member 16
Anonymous:
Dear Sir/Madam,
greetings!

Perfect infinitives can have the same kind of meaning as perfect or past tenses.
  • I am glad that I have found a new job. ( = I am glad to have found a new job.)
like the above please change the below sentences

I am happy that my sister passed her exam.( =
please change the above sentence using Perfect Infinitive.

thank you in advance.
Solomon