On Cambridge Online Dictionary, the phrase "have got" is considered a formal alternative to simply "have", for example:
He has four cats.
He has got four cats.
I want to ask: Does adding an additional modal verb (e.g. must) change the meaning, or is the meaning of "must have got" & "must have" still the same?
In other words, do these sentences mean the same thing?:
He must have four cats.
He must have got four cats.
How about with modals apart from must?