[Grammar] "should do" or "should have done"

[tianhang]

Hi, my dear friends, any help is appreciated here.

1.It is strange that he should do such things.
2.It is strange that he should have done such things.

As far as I know, we often say "it is strange that sb should do sth". So is the 2nd sentence right? If it is right, what is the difference between "it is strange that sb should do sth" and "it is strange that sb should have done sth".
Thanks a lot!

 

[Pokemon]

Hi, my dear friends, any help is appreciated here.

1.It is strange that he should do such things.
2.It is strange that he should have done such things.

As far as I know, we often say "it is strange that sb should do sth". So is the 2nd sentence right? If it is right, what is the difference between "it is strange that sb should do sth" and "it is strange that sb should have done sth".
Thanks a lot!

(1) On a regular basis in the present. It is strange that he should never laugh.
(2) A past time event. It is strange that he should have laughed when everybody was so upset.