must deck
Verbo regular: deck - decked- decked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must deck
you must deck
he must deck
we must deck
you must deck
they must deck 	I must be decking
you must be decking
he must be decking
we must be decking
you must be decking
they must be decking	I must have decked
you must have decked
he must have decked
we must have decked
you must have decked
they must have decked	I must have been decking
you must have been decking
he must have been decking
we must have been decking
you must have been decking
they must have been decking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't deck
you mustn't deck
he mustn't deck
we mustn't deck
you mustn't deck
they mustn't deck 	I mustn't be decking
you mustn't be decking
he mustn't be decking
we mustn't be decking
you mustn't be decking
they mustn't be decking	I mustn't have decked
you mustn't have decked
he mustn't have decked
we mustn't have decked
you mustn't have decked
they mustn't have decked	I mustn't have been decking
you mustn't have been decking
he mustn't have been decking
we mustn't have been decking
you mustn't have been decking
they mustn't have been decking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I deck?
must you deck?
must he deck?
must we deck?
must you deck?
must they deck? 	must I be decking?
must you be decking?
must he be decking?
must we be decking?
must you be decking?
must they be decking? 	must I have decked?
must you have decked?
must he have decked?
must we have decked?
must you have decked?
must they have decked? 	must I have been decking?
must you have been decking?
must he have been decking?
must we have been decking?
must you have been decking?
must they have been decking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I deck?
mustn't you deck?
mustn't he deck?
mustn't we deck?
mustn't you deck?
mustn't they deck? 	mustn't I be decking?
mustn't you be decking?
mustn't he be decking?
mustn't we be decking?
mustn't you be decking?
mustn't they be decking? 	mustn't I have decked?
mustn't you have decked?
mustn't he have decked?
mustn't we have decked?
mustn't you have decked?
mustn't they have decked? 	mustn't I have been decking?
mustn't you have been decking?
mustn't he have been decking?
mustn't we have been decking?
mustn't you have been decking?
mustn't they have been decking?