I must assort you must assort she must assort we must assort you must assort they must assort
V-ing form
I must be assorting you must be assorting she must be assorting we must be assorting you must be assorting they must be assorting
Perfect
I must have assorted you must have assorted she must have assorted we must have assorted you must have assorted they must have assorted
V-ing perfect
I must have been assorting you must have been assorting she must have been assorting we must have been assorting you must have been assorting they must have been assorting
Negation
Simple form
I must not assort you must not assort she must not assort we must not assort you must not assort they must not assort
V-ing form
I must not be assorting you must not be assorting she must not be assorting we must not be assorting you must not be assorting they must not be assorting
Perfect
I must not have assorted you must not have assorted she must not have assorted we must not have assorted you must not have assorted they must not have assorted
V-ing perfect
I must not have been assorting you must not have been assorting she must not have been assorting we must not have been assorting you must not have been assorting they must not have been assorting
Interrogative form
Simple form
must I assort? must you assort? must she assort? must we assort? must you assort? must they assort?
V-ing form
must I be assorting? must you be assorting? must she be assorting? must we be assorting? must you be assorting? must they be assorting?
Perfect
must I have assorted? must you have assorted? must she have assorted? must we have assorted? must you have assorted? must they have assorted?
V-ing perfect
must I have been assorting? must you have been assorting? must she have been assorting? must we have been assorting? must you have been assorting? must they have been assorting?
Interro-negative form
Simple form
must I not assort? must you not assort? must she not assort? must we not assort? must you not assort? must they not assort?
V-ing form
must I not be assorting? must you not be assorting? must she not be assorting? must we not be assorting? must you not be assorting? must they not be assorting?
Perfect
must I not have assorted? must you not have assorted? must she not have assorted? must we not have assorted? must you not have assorted? must they not have assorted?
V-ing perfect
must I not have been assorting? must you not have been assorting? must she not have been assorting? must we not have been assorting? must you not have been assorting? must they not have been assorting?