could slumber
Verbo regular: slumber - slumbered- slumbered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could slumber
you could slumber
he could slumber
we could slumber
you could slumber
they could slumber 	I could be slumbering
you could be slumbering
he could be slumbering
we could be slumbering
you could be slumbering
they could be slumbering	I could have slumbered
you could have slumbered
he could have slumbered
we could have slumbered
you could have slumbered
they could have slumbered	I could have been slumbering
you could have been slumbering
he could have been slumbering
we could have been slumbering
you could have been slumbering
they could have been slumbering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't slumber
you couldn't slumber
he couldn't slumber
we couldn't slumber
you couldn't slumber
they couldn't slumber 	I couldn't be slumbering
you couldn't be slumbering
he couldn't be slumbering
we couldn't be slumbering
you couldn't be slumbering
they couldn't be slumbering	I couldn't have slumbered
you couldn't have slumbered
he couldn't have slumbered
we couldn't have slumbered
you couldn't have slumbered
they couldn't have slumbered	I couldn't have been slumbering
you couldn't have been slumbering
he couldn't have been slumbering
we couldn't have been slumbering
you couldn't have been slumbering
they couldn't have been slumbering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I slumber?
could you slumber?
could he slumber?
could we slumber?
could you slumber?
could they slumber? 	could I be slumbering?
could you be slumbering?
could he be slumbering?
could we be slumbering?
could you be slumbering?
could they be slumbering? 	could I have slumbered?
could you have slumbered?
could he have slumbered?
could we have slumbered?
could you have slumbered?
could they have slumbered? 	could I have been slumbering?
could you have been slumbering?
could he have been slumbering?
could we have been slumbering?
could you have been slumbering?
could they have been slumbering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I slumber?
couldn't you slumber?
couldn't he slumber?
couldn't we slumber?
couldn't you slumber?
couldn't they slumber? 	couldn't I be slumbering?
couldn't you be slumbering?
couldn't he be slumbering?
couldn't we be slumbering?
couldn't you be slumbering?
couldn't they be slumbering? 	couldn't I have slumbered?
couldn't you have slumbered?
couldn't he have slumbered?
couldn't we have slumbered?
couldn't you have slumbered?
couldn't they have slumbered? 	couldn't I have been slumbering?
couldn't you have been slumbering?
couldn't he have been slumbering?
couldn't we have been slumbering?
couldn't you have been slumbering?
couldn't they have been slumbering?