Aky je vlastne rozdiel vo vyzname MUST a WILL.
Myslim to WILL, ktoremu sa nehovori „buduci cas“, ktory v skutocnosti neexistuje, skor vyjadruje akusi „certainty“
Vo vetach:
He will know it.
He must know it.
He will have gone to sleep. (by now)
He must have gone to sleep. (by now)