Use of "should have been"

Subject को ऐसा होना चाहिए |
Structure - Subject + Should have been + .......
Structure - Subject + Should not have been + .........

Ex :-
उसे नेपाल का राजा होना चाहिए था - He should have been the king of Nepal.
उसे इतना घमंडी नहीं होना चाहिए था - She should not have been so pride.