could marvel
Verbo regular: marvel - marvelled- marvelled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could marvel
you could marvel
she could marvel
we could marvel
you could marvel
they could marvel 	I could be marvelling
you could be marvelling
she could be marvelling
we could be marvelling
you could be marvelling
they could be marvelling	I could have marvelled
you could have marvelled
she could have marvelled
we could have marvelled
you could have marvelled
they could have marvelled	I could have been marvelling
you could have been marvelling
she could have been marvelling
we could have been marvelling
you could have been marvelling
they could have been marvelling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not marvel
you could not marvel
she could not marvel
we could not marvel
you could not marvel
they could not marvel 	I could not be marvelling
you could not be marvelling
she could not be marvelling
we could not be marvelling
you could not be marvelling
they could not be marvelling	I could not have marvelled
you could not have marvelled
she could not have marvelled
we could not have marvelled
you could not have marvelled
they could not have marvelled	I could not have been marvelling
you could not have been marvelling
she could not have been marvelling
we could not have been marvelling
you could not have been marvelling
they could not have been marvelling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I marvel?
could you marvel?
could she marvel?
could we marvel?
could you marvel?
could they marvel? 	could I be marvelling?
could you be marvelling?
could she be marvelling?
could we be marvelling?
could you be marvelling?
could they be marvelling? 	could I have marvelled?
could you have marvelled?
could she have marvelled?
could we have marvelled?
could you have marvelled?
could they have marvelled? 	could I have been marvelling?
could you have been marvelling?
could she have been marvelling?
could we have been marvelling?
could you have been marvelling?
could they have been marvelling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not marvel?
could you not marvel?
could she not marvel?
could we not marvel?
could you not marvel?
could they not marvel? 	could I not be marvelling?
could you not be marvelling?
could she not be marvelling?
could we not be marvelling?
could you not be marvelling?
could they not be marvelling? 	could I not have marvelled?
could you not have marvelled?
could she not have marvelled?
could we not have marvelled?
could you not have marvelled?
could they not have marvelled? 	could I not have been marvelling?
could you not have been marvelling?
could she not have been marvelling?
could we not have been marvelling?
could you not have been marvelling?
could they not have been marvelling?