What is the difference??

[Longster]

What difference do the sentence make in their meaning?:
It is strange that he should have done so
It is strange that he has done so (or did so)?

What does an English speaker think about when he chooses one phrase instead of the other???
Thank you)

[bhaisahab]

What difference do the sentence make in their meaning?:
It is strange that he should have done so
It is strange that he has done so (or did so)?

What does an English speaker think about when he chooses one phrase instead of the other???
Thank you)

There is no difference in meaning.

[Longster]

There is no difference in meaning.

But why do they say these in different situations? Forms meaning the same are unlikely to exist, if I may presume. It might seem pointless...

[emsr2d2]

But why do they say these in different situations? Forms meaning the same are unlikely to exist, if I may presume. It might seem pointless...

If you are learning English, you will need to get used to the fact that sometimes we have many ways of saying the same thing! Try to forget ideas like something being "unlikely to exist" in English.

[Barb_D]

Forms meaning the same are unlikely to exist, if I may presume.

Welcome to the forums.

Don't make this presumption. There are often many ways to say the same thing. Things can often be said many ways. It's possible to say the same thing different ways. You can say the same thing in different ways.

[Longster]

so if i unserstand you correctly, the word "should" equals to nothing in this term and it is all about the length of the phrase you are saying?

[emsr2d2]

So if I understand you correctly, the word "should" equals to nothing in this term and it is all about the length of the phrase you are saying?

No, not at all. The version with "should" is just another way of saying the same thing.