must wither
Verbo regular: wither - withered- withered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must wither
you must wither
he must wither
we must wither
you must wither
they must wither 	I must be withering
you must be withering
he must be withering
we must be withering
you must be withering
they must be withering	I must have withered
you must have withered
he must have withered
we must have withered
you must have withered
they must have withered	I must have been withering
you must have been withering
he must have been withering
we must have been withering
you must have been withering
they must have been withering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not wither
you must not wither
he must not wither
we must not wither
you must not wither
they must not wither 	I must not be withering
you must not be withering
he must not be withering
we must not be withering
you must not be withering
they must not be withering	I must not have withered
you must not have withered
he must not have withered
we must not have withered
you must not have withered
they must not have withered	I must not have been withering
you must not have been withering
he must not have been withering
we must not have been withering
you must not have been withering
they must not have been withering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I wither?
must you wither?
must he wither?
must we wither?
must you wither?
must they wither? 	must I be withering?
must you be withering?
must he be withering?
must we be withering?
must you be withering?
must they be withering? 	must I have withered?
must you have withered?
must he have withered?
must we have withered?
must you have withered?
must they have withered? 	must I have been withering?
must you have been withering?
must he have been withering?
must we have been withering?
must you have been withering?
must they have been withering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not wither?
must you not wither?
must he not wither?
must we not wither?
must you not wither?
must they not wither? 	must I not be withering?
must you not be withering?
must he not be withering?
must we not be withering?
must you not be withering?
must they not be withering? 	must I not have withered?
must you not have withered?
must he not have withered?
must we not have withered?
must you not have withered?
must they not have withered? 	must I not have been withering?
must you not have been withering?
must he not have been withering?
must we not have been withering?
must you not have been withering?
must they not have been withering?