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
she must deck
we must deck
you must deck
they must deck 	I must be decking
you must be decking
she must be decking
we must be decking
you must be decking
they must be decking	I must have decked
you must have decked
she 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
she 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 must not deck
you must not deck
she must not deck
we must not deck
you must not deck
they must not deck 	I must not be decking
you must not be decking
she must not be decking
we must not be decking
you must not be decking
they must not be decking	I must not have decked
you must not have decked
she must not have decked
we must not have decked
you must not have decked
they must not have decked	I must not have been decking
you must not have been decking
she must not have been decking
we must not have been decking
you must not have been decking
they must not have been decking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I deck?
must you deck?
must she deck?
must we deck?
must you deck?
must they deck? 	must I be decking?
must you be decking?
must she be decking?
must we be decking?
must you be decking?
must they be decking? 	must I have decked?
must you have decked?
must she 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 she 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 	
must I not deck?
must you not deck?
must she not deck?
must we not deck?
must you not deck?
must they not deck? 	must I not be decking?
must you not be decking?
must she not be decking?
must we not be decking?
must you not be decking?
must they not be decking? 	must I not have decked?
must you not have decked?
must she not have decked?
must we not have decked?
must you not have decked?
must they not have decked? 	must I not have been decking?
must you not have been decking?
must she not have been decking?
must we not have been decking?
must you not have been decking?
must they not have been decking?