could jump
Verbo regular: jump - jumped- jumped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could jump
you could jump
he could jump
we could jump
you could jump
they could jump 	I could be jumping
you could be jumping
he could be jumping
we could be jumping
you could be jumping
they could be jumping	I could have jumped
you could have jumped
he could have jumped
we could have jumped
you could have jumped
they could have jumped	I could have been jumping
you could have been jumping
he could have been jumping
we could have been jumping
you could have been jumping
they could have been jumping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't jump
you couldn't jump
he couldn't jump
we couldn't jump
you couldn't jump
they couldn't jump 	I couldn't be jumping
you couldn't be jumping
he couldn't be jumping
we couldn't be jumping
you couldn't be jumping
they couldn't be jumping	I couldn't have jumped
you couldn't have jumped
he couldn't have jumped
we couldn't have jumped
you couldn't have jumped
they couldn't have jumped	I couldn't have been jumping
you couldn't have been jumping
he couldn't have been jumping
we couldn't have been jumping
you couldn't have been jumping
they couldn't have been jumping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I jump?
could you jump?
could he jump?
could we jump?
could you jump?
could they jump? 	could I be jumping?
could you be jumping?
could he be jumping?
could we be jumping?
could you be jumping?
could they be jumping? 	could I have jumped?
could you have jumped?
could he have jumped?
could we have jumped?
could you have jumped?
could they have jumped? 	could I have been jumping?
could you have been jumping?
could he have been jumping?
could we have been jumping?
could you have been jumping?
could they have been jumping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I jump?
couldn't you jump?
couldn't he jump?
couldn't we jump?
couldn't you jump?
couldn't they jump? 	couldn't I be jumping?
couldn't you be jumping?
couldn't he be jumping?
couldn't we be jumping?
couldn't you be jumping?
couldn't they be jumping? 	couldn't I have jumped?
couldn't you have jumped?
couldn't he have jumped?
couldn't we have jumped?
couldn't you have jumped?
couldn't they have jumped? 	couldn't I have been jumping?
couldn't you have been jumping?
couldn't he have been jumping?
couldn't we have been jumping?
couldn't you have been jumping?
couldn't they have been jumping?