English verb conjugation
MUST FLUMMOX

Regular verb: flummox - flummoxed - flummoxed

Affirmation

Simple form	V-ing form
I must flummox you must flummox he must flummox we must flummox you must flummox they must flummox	I must be flummoxing you must be flummoxing he must be flummoxing we must be flummoxing you must be flummoxing they must be flummoxing
Perfect	V-ing perfect
I must have flummoxed you must have flummoxed he must have flummoxed we must have flummoxed you must have flummoxed they must have flummoxed	I must have been flummoxing you must have been flummoxing he must have been flummoxing we must have been flummoxing you must have been flummoxing they must have been flummoxing

Negation

Simple form	V-ing form
I must not flummox you must not flummox he must not flummox we must not flummox you must not flummox they must not flummox	I must not be flummoxing you must not be flummoxing he must not be flummoxing we must not be flummoxing you must not be flummoxing they must not be flummoxing
Perfect	V-ing perfect
I must not have flummoxed you must not have flummoxed he must not have flummoxed we must not have flummoxed you must not have flummoxed they must not have flummoxed	I must not have been flummoxing you must not have been flummoxing he must not have been flummoxing we must not have been flummoxing you must not have been flummoxing they must not have been flummoxing

Interrogative form

Simple form	V-ing form
must I flummox? must you flummox? must he flummox? must we flummox? must you flummox? must they flummox?	must I be flummoxing? must you be flummoxing? must he be flummoxing? must we be flummoxing? must you be flummoxing? must they be flummoxing?
Perfect	V-ing perfect
must I have flummoxed? must you have flummoxed? must he have flummoxed? must we have flummoxed? must you have flummoxed? must they have flummoxed?	must I have been flummoxing? must you have been flummoxing? must he have been flummoxing? must we have been flummoxing? must you have been flummoxing? must they have been flummoxing?

Interro-negative form

Simple form	V-ing form
must I not flummox? must you not flummox? must he not flummox? must we not flummox? must you not flummox? must they not flummox?	must I not be flummoxing? must you not be flummoxing? must he not be flummoxing? must we not be flummoxing? must you not be flummoxing? must they not be flummoxing?
Perfect	V-ing perfect
must I not have flummoxed? must you not have flummoxed? must he not have flummoxed? must we not have flummoxed? must you not have flummoxed? must they not have flummoxed?	must I not have been flummoxing? must you not have been flummoxing? must he not have been flummoxing? must we not have been flummoxing? must you not have been flummoxing? must they not have been flummoxing?