must spud
Verbo regular: spud - spudded- spudded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must spud
you must spud
he must spud
we must spud
you must spud
they must spud 	I must be spudding
you must be spudding
he must be spudding
we must be spudding
you must be spudding
they must be spudding	I must have spudded
you must have spudded
he must have spudded
we must have spudded
you must have spudded
they must have spudded	I must have been spudding
you must have been spudding
he must have been spudding
we must have been spudding
you must have been spudding
they must have been spudding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not spud
you must not spud
he must not spud
we must not spud
you must not spud
they must not spud 	I must not be spudding
you must not be spudding
he must not be spudding
we must not be spudding
you must not be spudding
they must not be spudding	I must not have spudded
you must not have spudded
he must not have spudded
we must not have spudded
you must not have spudded
they must not have spudded	I must not have been spudding
you must not have been spudding
he must not have been spudding
we must not have been spudding
you must not have been spudding
they must not have been spudding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I spud?
must you spud?
must he spud?
must we spud?
must you spud?
must they spud? 	must I be spudding?
must you be spudding?
must he be spudding?
must we be spudding?
must you be spudding?
must they be spudding? 	must I have spudded?
must you have spudded?
must he have spudded?
must we have spudded?
must you have spudded?
must they have spudded? 	must I have been spudding?
must you have been spudding?
must he have been spudding?
must we have been spudding?
must you have been spudding?
must they have been spudding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not spud?
must you not spud?
must he not spud?
must we not spud?
must you not spud?
must they not spud? 	must I not be spudding?
must you not be spudding?
must he not be spudding?
must we not be spudding?
must you not be spudding?
must they not be spudding? 	must I not have spudded?
must you not have spudded?
must he not have spudded?
must we not have spudded?
must you not have spudded?
must they not have spudded? 	must I not have been spudding?
must you not have been spudding?
must he not have been spudding?
must we not have been spudding?
must you not have been spudding?
must they not have been spudding?