must forbid
Verbo irregular: forbid - forbid, forbade- forbid, forbidden

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must forbid
you must forbid
he must forbid
we must forbid
you must forbid
they must forbid 	I must be forbidding
you must be forbidding
he must be forbidding
we must be forbidding
you must be forbidding
they must be forbidding	I must have forbid, forbidden
you must have forbid, forbidden
he must have forbid, forbidden
we must have forbid, forbidden
you must have forbid, forbidden
they must have forbid, forbidden	I must have been forbidding
you must have been forbidding
he must have been forbidding
we must have been forbidding
you must have been forbidding
they must have been forbidding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't forbid
you mustn't forbid
he mustn't forbid
we mustn't forbid
you mustn't forbid
they mustn't forbid 	I mustn't be forbidding
you mustn't be forbidding
he mustn't be forbidding
we mustn't be forbidding
you mustn't be forbidding
they mustn't be forbidding	I mustn't have forbid, forbidden
you mustn't have forbid, forbidden
he mustn't have forbid, forbidden
we mustn't have forbid, forbidden
you mustn't have forbid, forbidden
they mustn't have forbid, forbidden	I mustn't have been forbidding
you mustn't have been forbidding
he mustn't have been forbidding
we mustn't have been forbidding
you mustn't have been forbidding
they mustn't have been forbidding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I forbid?
must you forbid?
must he forbid?
must we forbid?
must you forbid?
must they forbid? 	must I be forbidding?
must you be forbidding?
must he be forbidding?
must we be forbidding?
must you be forbidding?
must they be forbidding? 	must I have forbid, forbidden?
must you have forbid, forbidden?
must he have forbid, forbidden?
must we have forbid, forbidden?
must you have forbid, forbidden?
must they have forbid, forbidden? 	must I have been forbidding?
must you have been forbidding?
must he have been forbidding?
must we have been forbidding?
must you have been forbidding?
must they have been forbidding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I forbid?
mustn't you forbid?
mustn't he forbid?
mustn't we forbid?
mustn't you forbid?
mustn't they forbid? 	mustn't I be forbidding?
mustn't you be forbidding?
mustn't he be forbidding?
mustn't we be forbidding?
mustn't you be forbidding?
mustn't they be forbidding? 	mustn't I have forbid, forbidden?
mustn't you have forbid, forbidden?
mustn't he have forbid, forbidden?
mustn't we have forbid, forbidden?
mustn't you have forbid, forbidden?
mustn't they have forbid, forbidden? 	mustn't I have been forbidding?
mustn't you have been forbidding?
mustn't he have been forbidding?
mustn't we have been forbidding?
mustn't you have been forbidding?
mustn't they have been forbidding?