must talk
Verbo regular: talk - talked- talked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must talk
you must talk
he must talk
we must talk
you must talk
they must talk 	I must be talking
you must be talking
he must be talking
we must be talking
you must be talking
they must be talking	I must have talked
you must have talked
he must have talked
we must have talked
you must have talked
they must have talked	I must have been talking
you must have been talking
he must have been talking
we must have been talking
you must have been talking
they must have been talking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't talk
you mustn't talk
he mustn't talk
we mustn't talk
you mustn't talk
they mustn't talk 	I mustn't be talking
you mustn't be talking
he mustn't be talking
we mustn't be talking
you mustn't be talking
they mustn't be talking	I mustn't have talked
you mustn't have talked
he mustn't have talked
we mustn't have talked
you mustn't have talked
they mustn't have talked	I mustn't have been talking
you mustn't have been talking
he mustn't have been talking
we mustn't have been talking
you mustn't have been talking
they mustn't have been talking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I talk?
must you talk?
must he talk?
must we talk?
must you talk?
must they talk? 	must I be talking?
must you be talking?
must he be talking?
must we be talking?
must you be talking?
must they be talking? 	must I have talked?
must you have talked?
must he have talked?
must we have talked?
must you have talked?
must they have talked? 	must I have been talking?
must you have been talking?
must he have been talking?
must we have been talking?
must you have been talking?
must they have been talking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I talk?
mustn't you talk?
mustn't he talk?
mustn't we talk?
mustn't you talk?
mustn't they talk? 	mustn't I be talking?
mustn't you be talking?
mustn't he be talking?
mustn't we be talking?
mustn't you be talking?
mustn't they be talking? 	mustn't I have talked?
mustn't you have talked?
mustn't he have talked?
mustn't we have talked?
mustn't you have talked?
mustn't they have talked? 	mustn't I have been talking?
mustn't you have been talking?
mustn't he have been talking?
mustn't we have been talking?
mustn't you have been talking?
mustn't they have been talking?