must flux
Regular verb: flux - fluxed- fluxed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must flux
you must flux
she must flux
we must flux
you must flux
they must flux 	I must be fluxing
you must be fluxing
she must be fluxing
we must be fluxing
you must be fluxing
they must be fluxing	I must have fluxed
you must have fluxed
she must have fluxed
we must have fluxed
you must have fluxed
they must have fluxed	I must have been fluxing
you must have been fluxing
she must have been fluxing
we must have been fluxing
you must have been fluxing
they must have been fluxing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not flux
you must not flux
she must not flux
we must not flux
you must not flux
they must not flux 	I must not be fluxing
you must not be fluxing
she must not be fluxing
we must not be fluxing
you must not be fluxing
they must not be fluxing	I must not have fluxed
you must not have fluxed
she must not have fluxed
we must not have fluxed
you must not have fluxed
they must not have fluxed	I must not have been fluxing
you must not have been fluxing
she must not have been fluxing
we must not have been fluxing
you must not have been fluxing
they must not have been fluxing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I flux?
must you flux?
must she flux?
must we flux?
must you flux?
must they flux? 	must I be fluxing?
must you be fluxing?
must she be fluxing?
must we be fluxing?
must you be fluxing?
must they be fluxing? 	must I have fluxed?
must you have fluxed?
must she have fluxed?
must we have fluxed?
must you have fluxed?
must they have fluxed? 	must I have been fluxing?
must you have been fluxing?
must she have been fluxing?
must we have been fluxing?
must you have been fluxing?
must they have been fluxing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not flux?
must you not flux?
must she not flux?
must we not flux?
must you not flux?
must they not flux? 	must I not be fluxing?
must you not be fluxing?
must she not be fluxing?
must we not be fluxing?
must you not be fluxing?
must they not be fluxing? 	must I not have fluxed?
must you not have fluxed?
must she not have fluxed?
must we not have fluxed?
must you not have fluxed?
must they not have fluxed? 	must I not have been fluxing?
must you not have been fluxing?
must she not have been fluxing?
must we not have been fluxing?
must you not have been fluxing?
must they not have been fluxing?