must stag
Verbo regular: stag - staged- staged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must stag
you must stag
he must stag
we must stag
you must stag
they must stag 	I must be staging
you must be staging
he must be staging
we must be staging
you must be staging
they must be staging	I must have staged
you must have staged
he must have staged
we must have staged
you must have staged
they must have staged	I must have been staging
you must have been staging
he must have been staging
we must have been staging
you must have been staging
they must have been staging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't stag
you mustn't stag
he mustn't stag
we mustn't stag
you mustn't stag
they mustn't stag 	I mustn't be staging
you mustn't be staging
he mustn't be staging
we mustn't be staging
you mustn't be staging
they mustn't be staging	I mustn't have staged
you mustn't have staged
he mustn't have staged
we mustn't have staged
you mustn't have staged
they mustn't have staged	I mustn't have been staging
you mustn't have been staging
he mustn't have been staging
we mustn't have been staging
you mustn't have been staging
they mustn't have been staging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I stag?
must you stag?
must he stag?
must we stag?
must you stag?
must they stag? 	must I be staging?
must you be staging?
must he be staging?
must we be staging?
must you be staging?
must they be staging? 	must I have staged?
must you have staged?
must he have staged?
must we have staged?
must you have staged?
must they have staged? 	must I have been staging?
must you have been staging?
must he have been staging?
must we have been staging?
must you have been staging?
must they have been staging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I stag?
mustn't you stag?
mustn't he stag?
mustn't we stag?
mustn't you stag?
mustn't they stag? 	mustn't I be staging?
mustn't you be staging?
mustn't he be staging?
mustn't we be staging?
mustn't you be staging?
mustn't they be staging? 	mustn't I have staged?
mustn't you have staged?
mustn't he have staged?
mustn't we have staged?
mustn't you have staged?
mustn't they have staged? 	mustn't I have been staging?
mustn't you have been staging?
mustn't he have been staging?
mustn't we have been staging?
mustn't you have been staging?
mustn't they have been staging?