I must qualify you must qualify she must qualify we must qualify you must qualify they must qualify
V-ing form
I must be qualifying you must be qualifying she must be qualifying we must be qualifying you must be qualifying they must be qualifying
Perfect
I must have qualified you must have qualified she must have qualified we must have qualified you must have qualified they must have qualified
V-ing perfect
I must have been qualifying you must have been qualifying she must have been qualifying we must have been qualifying you must have been qualifying they must have been qualifying
Negation
Simple form
I must not qualify you must not qualify she must not qualify we must not qualify you must not qualify they must not qualify
V-ing form
I must not be qualifying you must not be qualifying she must not be qualifying we must not be qualifying you must not be qualifying they must not be qualifying
Perfect
I must not have qualified you must not have qualified she must not have qualified we must not have qualified you must not have qualified they must not have qualified
V-ing perfect
I must not have been qualifying you must not have been qualifying she must not have been qualifying we must not have been qualifying you must not have been qualifying they must not have been qualifying
Interrogative form
Simple form
must I qualify? must you qualify? must she qualify? must we qualify? must you qualify? must they qualify?
V-ing form
must I be qualifying? must you be qualifying? must she be qualifying? must we be qualifying? must you be qualifying? must they be qualifying?
Perfect
must I have qualified? must you have qualified? must she have qualified? must we have qualified? must you have qualified? must they have qualified?
V-ing perfect
must I have been qualifying? must you have been qualifying? must she have been qualifying? must we have been qualifying? must you have been qualifying? must they have been qualifying?
Interro-negative form
Simple form
must I not qualify? must you not qualify? must she not qualify? must we not qualify? must you not qualify? must they not qualify?
V-ing form
must I not be qualifying? must you not be qualifying? must she not be qualifying? must we not be qualifying? must you not be qualifying? must they not be qualifying?
Perfect
must I not have qualified? must you not have qualified? must she not have qualified? must we not have qualified? must you not have qualified? must they not have qualified?
V-ing perfect
must I not have been qualifying? must you not have been qualifying? must she not have been qualifying? must we not have been qualifying? must you not have been qualifying? must they not have been qualifying?