must sucker
Verbo regular: sucker - suckered- suckered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must sucker
you must sucker
he must sucker
we must sucker
you must sucker
they must sucker 	I must be suckering
you must be suckering
he must be suckering
we must be suckering
you must be suckering
they must be suckering	I must have suckered
you must have suckered
he must have suckered
we must have suckered
you must have suckered
they must have suckered	I must have been suckering
you must have been suckering
he must have been suckering
we must have been suckering
you must have been suckering
they must have been suckering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not sucker
you must not sucker
he must not sucker
we must not sucker
you must not sucker
they must not sucker 	I must not be suckering
you must not be suckering
he must not be suckering
we must not be suckering
you must not be suckering
they must not be suckering	I must not have suckered
you must not have suckered
he must not have suckered
we must not have suckered
you must not have suckered
they must not have suckered	I must not have been suckering
you must not have been suckering
he must not have been suckering
we must not have been suckering
you must not have been suckering
they must not have been suckering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I sucker?
must you sucker?
must he sucker?
must we sucker?
must you sucker?
must they sucker? 	must I be suckering?
must you be suckering?
must he be suckering?
must we be suckering?
must you be suckering?
must they be suckering? 	must I have suckered?
must you have suckered?
must he have suckered?
must we have suckered?
must you have suckered?
must they have suckered? 	must I have been suckering?
must you have been suckering?
must he have been suckering?
must we have been suckering?
must you have been suckering?
must they have been suckering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not sucker?
must you not sucker?
must he not sucker?
must we not sucker?
must you not sucker?
must they not sucker? 	must I not be suckering?
must you not be suckering?
must he not be suckering?
must we not be suckering?
must you not be suckering?
must they not be suckering? 	must I not have suckered?
must you not have suckered?
must he not have suckered?
must we not have suckered?
must you not have suckered?
must they not have suckered? 	must I not have been suckering?
must you not have been suckering?
must he not have been suckering?
must we not have been suckering?
must you not have been suckering?
must they not have been suckering?