must spam
Verbo regular: spam - spamed- spamed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must spam
you must spam
he must spam
we must spam
you must spam
they must spam 	I must be spaming
you must be spaming
he must be spaming
we must be spaming
you must be spaming
they must be spaming	I must have spamed
you must have spamed
he must have spamed
we must have spamed
you must have spamed
they must have spamed	I must have been spaming
you must have been spaming
he must have been spaming
we must have been spaming
you must have been spaming
they must have been spaming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not spam
you must not spam
he must not spam
we must not spam
you must not spam
they must not spam 	I must not be spaming
you must not be spaming
he must not be spaming
we must not be spaming
you must not be spaming
they must not be spaming	I must not have spamed
you must not have spamed
he must not have spamed
we must not have spamed
you must not have spamed
they must not have spamed	I must not have been spaming
you must not have been spaming
he must not have been spaming
we must not have been spaming
you must not have been spaming
they must not have been spaming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I spam?
must you spam?
must he spam?
must we spam?
must you spam?
must they spam? 	must I be spaming?
must you be spaming?
must he be spaming?
must we be spaming?
must you be spaming?
must they be spaming? 	must I have spamed?
must you have spamed?
must he have spamed?
must we have spamed?
must you have spamed?
must they have spamed? 	must I have been spaming?
must you have been spaming?
must he have been spaming?
must we have been spaming?
must you have been spaming?
must they have been spaming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not spam?
must you not spam?
must he not spam?
must we not spam?
must you not spam?
must they not spam? 	must I not be spaming?
must you not be spaming?
must he not be spaming?
must we not be spaming?
must you not be spaming?
must they not be spaming? 	must I not have spamed?
must you not have spamed?
must he not have spamed?
must we not have spamed?
must you not have spamed?
must they not have spamed? 	must I not have been spaming?
must you not have been spaming?
must he not have been spaming?
must we not have been spaming?
must you not have been spaming?
must they not have been spaming?