I must reopen you must reopen he must reopen we must reopen you must reopen they must reopen
V-ing form
I must be reopening you must be reopening he must be reopening we must be reopening you must be reopening they must be reopening
Perfect
I must have reopened you must have reopened he must have reopened we must have reopened you must have reopened they must have reopened
V-ing perfect
I must have been reopening you must have been reopening he must have been reopening we must have been reopening you must have been reopening they must have been reopening
Negation
Simple form
I mustn't reopen you mustn't reopen he mustn't reopen we mustn't reopen you mustn't reopen they mustn't reopen
V-ing form
I mustn't be reopening you mustn't be reopening he mustn't be reopening we mustn't be reopening you mustn't be reopening they mustn't be reopening
Perfect
I mustn't have reopened you mustn't have reopened he mustn't have reopened we mustn't have reopened you mustn't have reopened they mustn't have reopened
V-ing perfect
I mustn't have been reopening you mustn't have been reopening he mustn't have been reopening we mustn't have been reopening you mustn't have been reopening they mustn't have been reopening
Interrogative form
Simple form
must I reopen? must you reopen? must he reopen? must we reopen? must you reopen? must they reopen?
V-ing form
must I be reopening? must you be reopening? must he be reopening? must we be reopening? must you be reopening? must they be reopening?
Perfect
must I have reopened? must you have reopened? must he have reopened? must we have reopened? must you have reopened? must they have reopened?
V-ing perfect
must I have been reopening? must you have been reopening? must he have been reopening? must we have been reopening? must you have been reopening? must they have been reopening?
Interro-negative form
Simple form
mustn't I reopen? mustn't you reopen? mustn't he reopen? mustn't we reopen? mustn't you reopen? mustn't they reopen?
V-ing form
mustn't I be reopening? mustn't you be reopening? mustn't he be reopening? mustn't we be reopening? mustn't you be reopening? mustn't they be reopening?
Perfect
mustn't I have reopened? mustn't you have reopened? mustn't he have reopened? mustn't we have reopened? mustn't you have reopened? mustn't they have reopened?
V-ing perfect
mustn't I have been reopening? mustn't you have been reopening? mustn't he have been reopening? mustn't we have been reopening? mustn't you have been reopening? mustn't they have been reopening?