must charm
Verbo regular: charm - charmed- charmed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must charm
you must charm
he must charm
we must charm
you must charm
they must charm 	I must be charming
you must be charming
he must be charming
we must be charming
you must be charming
they must be charming	I must have charmed
you must have charmed
he must have charmed
we must have charmed
you must have charmed
they must have charmed	I must have been charming
you must have been charming
he must have been charming
we must have been charming
you must have been charming
they must have been charming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't charm
you mustn't charm
he mustn't charm
we mustn't charm
you mustn't charm
they mustn't charm 	I mustn't be charming
you mustn't be charming
he mustn't be charming
we mustn't be charming
you mustn't be charming
they mustn't be charming	I mustn't have charmed
you mustn't have charmed
he mustn't have charmed
we mustn't have charmed
you mustn't have charmed
they mustn't have charmed	I mustn't have been charming
you mustn't have been charming
he mustn't have been charming
we mustn't have been charming
you mustn't have been charming
they mustn't have been charming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I charm?
must you charm?
must he charm?
must we charm?
must you charm?
must they charm? 	must I be charming?
must you be charming?
must he be charming?
must we be charming?
must you be charming?
must they be charming? 	must I have charmed?
must you have charmed?
must he have charmed?
must we have charmed?
must you have charmed?
must they have charmed? 	must I have been charming?
must you have been charming?
must he have been charming?
must we have been charming?
must you have been charming?
must they have been charming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I charm?
mustn't you charm?
mustn't he charm?
mustn't we charm?
mustn't you charm?
mustn't they charm? 	mustn't I be charming?
mustn't you be charming?
mustn't he be charming?
mustn't we be charming?
mustn't you be charming?
mustn't they be charming? 	mustn't I have charmed?
mustn't you have charmed?
mustn't he have charmed?
mustn't we have charmed?
mustn't you have charmed?
mustn't they have charmed? 	mustn't I have been charming?
mustn't you have been charming?
mustn't he have been charming?
mustn't we have been charming?
mustn't you have been charming?
mustn't they have been charming?