must enchain
Verbo regular: enchain - enchained- enchained

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must enchain
you must enchain
he must enchain
we must enchain
you must enchain
they must enchain 	I must be enchaining
you must be enchaining
he must be enchaining
we must be enchaining
you must be enchaining
they must be enchaining	I must have enchained
you must have enchained
he must have enchained
we must have enchained
you must have enchained
they must have enchained	I must have been enchaining
you must have been enchaining
he must have been enchaining
we must have been enchaining
you must have been enchaining
they must have been enchaining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't enchain
you mustn't enchain
he mustn't enchain
we mustn't enchain
you mustn't enchain
they mustn't enchain 	I mustn't be enchaining
you mustn't be enchaining
he mustn't be enchaining
we mustn't be enchaining
you mustn't be enchaining
they mustn't be enchaining	I mustn't have enchained
you mustn't have enchained
he mustn't have enchained
we mustn't have enchained
you mustn't have enchained
they mustn't have enchained	I mustn't have been enchaining
you mustn't have been enchaining
he mustn't have been enchaining
we mustn't have been enchaining
you mustn't have been enchaining
they mustn't have been enchaining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I enchain?
must you enchain?
must he enchain?
must we enchain?
must you enchain?
must they enchain? 	must I be enchaining?
must you be enchaining?
must he be enchaining?
must we be enchaining?
must you be enchaining?
must they be enchaining? 	must I have enchained?
must you have enchained?
must he have enchained?
must we have enchained?
must you have enchained?
must they have enchained? 	must I have been enchaining?
must you have been enchaining?
must he have been enchaining?
must we have been enchaining?
must you have been enchaining?
must they have been enchaining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I enchain?
mustn't you enchain?
mustn't he enchain?
mustn't we enchain?
mustn't you enchain?
mustn't they enchain? 	mustn't I be enchaining?
mustn't you be enchaining?
mustn't he be enchaining?
mustn't we be enchaining?
mustn't you be enchaining?
mustn't they be enchaining? 	mustn't I have enchained?
mustn't you have enchained?
mustn't he have enchained?
mustn't we have enchained?
mustn't you have enchained?
mustn't they have enchained? 	mustn't I have been enchaining?
mustn't you have been enchaining?
mustn't he have been enchaining?
mustn't we have been enchaining?
mustn't you have been enchaining?
mustn't they have been enchaining?