can muster
Verbo regular: muster - mustered- mustered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can muster
you can muster
she can muster
we can muster
you can muster
they can muster 	I can be mustering
you can be mustering
she can be mustering
we can be mustering
you can be mustering
they can be mustering	I can have mustered
you can have mustered
she can have mustered
we can have mustered
you can have mustered
they can have mustered	I can have been mustering
you can have been mustering
she can have been mustering
we can have been mustering
you can have been mustering
they can have been mustering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot muster
you cannot muster
she cannot muster
we cannot muster
you cannot muster
they cannot muster 	I cannot be mustering
you cannot be mustering
she cannot be mustering
we cannot be mustering
you cannot be mustering
they cannot be mustering	I cannot have mustered
you cannot have mustered
she cannot have mustered
we cannot have mustered
you cannot have mustered
they cannot have mustered	I cannot have been mustering
you cannot have been mustering
she cannot have been mustering
we cannot have been mustering
you cannot have been mustering
they cannot have been mustering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I muster?
can you muster?
can she muster?
can we muster?
can you muster?
can they muster? 	can I be mustering?
can you be mustering?
can she be mustering?
can we be mustering?
can you be mustering?
can they be mustering? 	can I have mustered?
can you have mustered?
can she have mustered?
can we have mustered?
can you have mustered?
can they have mustered? 	can I have been mustering?
can you have been mustering?
can she have been mustering?
can we have been mustering?
can you have been mustering?
can they have been mustering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not muster?
can you not muster?
can she not muster?
can we not muster?
can you not muster?
can they not muster? 	can I not be mustering?
can you not be mustering?
can she not be mustering?
can we not be mustering?
can you not be mustering?
can they not be mustering? 	can I not have mustered?
can you not have mustered?
can she not have mustered?
can we not have mustered?
can you not have mustered?
can they not have mustered? 	can I not have been mustering?
can you not have been mustering?
can she not have been mustering?
can we not have been mustering?
can you not have been mustering?
can they not have been mustering?