must bag
Verbo regular: bag - bagged- bagged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must bag
you must bag
she must bag
we must bag
you must bag
they must bag 	I must be bagging
you must be bagging
she must be bagging
we must be bagging
you must be bagging
they must be bagging	I must have bagged
you must have bagged
she must have bagged
we must have bagged
you must have bagged
they must have bagged	I must have been bagging
you must have been bagging
she must have been bagging
we must have been bagging
you must have been bagging
they must have been bagging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't bag
you mustn't bag
she mustn't bag
we mustn't bag
you mustn't bag
they mustn't bag 	I mustn't be bagging
you mustn't be bagging
she mustn't be bagging
we mustn't be bagging
you mustn't be bagging
they mustn't be bagging	I mustn't have bagged
you mustn't have bagged
she mustn't have bagged
we mustn't have bagged
you mustn't have bagged
they mustn't have bagged	I mustn't have been bagging
you mustn't have been bagging
she mustn't have been bagging
we mustn't have been bagging
you mustn't have been bagging
they mustn't have been bagging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I bag?
must you bag?
must she bag?
must we bag?
must you bag?
must they bag? 	must I be bagging?
must you be bagging?
must she be bagging?
must we be bagging?
must you be bagging?
must they be bagging? 	must I have bagged?
must you have bagged?
must she have bagged?
must we have bagged?
must you have bagged?
must they have bagged? 	must I have been bagging?
must you have been bagging?
must she have been bagging?
must we have been bagging?
must you have been bagging?
must they have been bagging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I bag?
mustn't you bag?
mustn't she bag?
mustn't we bag?
mustn't you bag?
mustn't they bag? 	mustn't I be bagging?
mustn't you be bagging?
mustn't she be bagging?
mustn't we be bagging?
mustn't you be bagging?
mustn't they be bagging? 	mustn't I have bagged?
mustn't you have bagged?
mustn't she have bagged?
mustn't we have bagged?
mustn't you have bagged?
mustn't they have bagged? 	mustn't I have been bagging?
mustn't you have been bagging?
mustn't she have been bagging?
mustn't we have been bagging?
mustn't you have been bagging?
mustn't they have been bagging?