must smolder
Regular verb: smolder - smoldered- smoldered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must smolder
you must smolder
he must smolder
we must smolder
you must smolder
they must smolder 	I must be smoldering
you must be smoldering
he must be smoldering
we must be smoldering
you must be smoldering
they must be smoldering	I must have smoldered
you must have smoldered
he must have smoldered
we must have smoldered
you must have smoldered
they must have smoldered	I must have been smoldering
you must have been smoldering
he must have been smoldering
we must have been smoldering
you must have been smoldering
they must have been smoldering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not smolder
you must not smolder
he must not smolder
we must not smolder
you must not smolder
they must not smolder 	I must not be smoldering
you must not be smoldering
he must not be smoldering
we must not be smoldering
you must not be smoldering
they must not be smoldering	I must not have smoldered
you must not have smoldered
he must not have smoldered
we must not have smoldered
you must not have smoldered
they must not have smoldered	I must not have been smoldering
you must not have been smoldering
he must not have been smoldering
we must not have been smoldering
you must not have been smoldering
they must not have been smoldering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I smolder?
must you smolder?
must he smolder?
must we smolder?
must you smolder?
must they smolder? 	must I be smoldering?
must you be smoldering?
must he be smoldering?
must we be smoldering?
must you be smoldering?
must they be smoldering? 	must I have smoldered?
must you have smoldered?
must he have smoldered?
must we have smoldered?
must you have smoldered?
must they have smoldered? 	must I have been smoldering?
must you have been smoldering?
must he have been smoldering?
must we have been smoldering?
must you have been smoldering?
must they have been smoldering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not smolder?
must you not smolder?
must he not smolder?
must we not smolder?
must you not smolder?
must they not smolder? 	must I not be smoldering?
must you not be smoldering?
must he not be smoldering?
must we not be smoldering?
must you not be smoldering?
must they not be smoldering? 	must I not have smoldered?
must you not have smoldered?
must he not have smoldered?
must we not have smoldered?
must you not have smoldered?
must they not have smoldered? 	must I not have been smoldering?
must you not have been smoldering?
must he not have been smoldering?
must we not have been smoldering?
must you not have been smoldering?
must they not have been smoldering?