could prink
Verbo regular: prink - prinked- prinked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could prink
you could prink
he could prink
we could prink
you could prink
they could prink 	I could be prinking
you could be prinking
he could be prinking
we could be prinking
you could be prinking
they could be prinking	I could have prinked
you could have prinked
he could have prinked
we could have prinked
you could have prinked
they could have prinked	I could have been prinking
you could have been prinking
he could have been prinking
we could have been prinking
you could have been prinking
they could have been prinking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't prink
you couldn't prink
he couldn't prink
we couldn't prink
you couldn't prink
they couldn't prink 	I couldn't be prinking
you couldn't be prinking
he couldn't be prinking
we couldn't be prinking
you couldn't be prinking
they couldn't be prinking	I couldn't have prinked
you couldn't have prinked
he couldn't have prinked
we couldn't have prinked
you couldn't have prinked
they couldn't have prinked	I couldn't have been prinking
you couldn't have been prinking
he couldn't have been prinking
we couldn't have been prinking
you couldn't have been prinking
they couldn't have been prinking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I prink?
could you prink?
could he prink?
could we prink?
could you prink?
could they prink? 	could I be prinking?
could you be prinking?
could he be prinking?
could we be prinking?
could you be prinking?
could they be prinking? 	could I have prinked?
could you have prinked?
could he have prinked?
could we have prinked?
could you have prinked?
could they have prinked? 	could I have been prinking?
could you have been prinking?
could he have been prinking?
could we have been prinking?
could you have been prinking?
could they have been prinking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I prink?
couldn't you prink?
couldn't he prink?
couldn't we prink?
couldn't you prink?
couldn't they prink? 	couldn't I be prinking?
couldn't you be prinking?
couldn't he be prinking?
couldn't we be prinking?
couldn't you be prinking?
couldn't they be prinking? 	couldn't I have prinked?
couldn't you have prinked?
couldn't he have prinked?
couldn't we have prinked?
couldn't you have prinked?
couldn't they have prinked? 	couldn't I have been prinking?
couldn't you have been prinking?
couldn't he have been prinking?
couldn't we have been prinking?
couldn't you have been prinking?
couldn't they have been prinking?