could circle
Verbo regular: circle - circled- circled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could circle
you could circle
he could circle
we could circle
you could circle
they could circle 	I could be circling
you could be circling
he could be circling
we could be circling
you could be circling
they could be circling	I could have circled
you could have circled
he could have circled
we could have circled
you could have circled
they could have circled	I could have been circling
you could have been circling
he could have been circling
we could have been circling
you could have been circling
they could have been circling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't circle
you couldn't circle
he couldn't circle
we couldn't circle
you couldn't circle
they couldn't circle 	I couldn't be circling
you couldn't be circling
he couldn't be circling
we couldn't be circling
you couldn't be circling
they couldn't be circling	I couldn't have circled
you couldn't have circled
he couldn't have circled
we couldn't have circled
you couldn't have circled
they couldn't have circled	I couldn't have been circling
you couldn't have been circling
he couldn't have been circling
we couldn't have been circling
you couldn't have been circling
they couldn't have been circling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I circle?
could you circle?
could he circle?
could we circle?
could you circle?
could they circle? 	could I be circling?
could you be circling?
could he be circling?
could we be circling?
could you be circling?
could they be circling? 	could I have circled?
could you have circled?
could he have circled?
could we have circled?
could you have circled?
could they have circled? 	could I have been circling?
could you have been circling?
could he have been circling?
could we have been circling?
could you have been circling?
could they have been circling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I circle?
couldn't you circle?
couldn't he circle?
couldn't we circle?
couldn't you circle?
couldn't they circle? 	couldn't I be circling?
couldn't you be circling?
couldn't he be circling?
couldn't we be circling?
couldn't you be circling?
couldn't they be circling? 	couldn't I have circled?
couldn't you have circled?
couldn't he have circled?
couldn't we have circled?
couldn't you have circled?
couldn't they have circled? 	couldn't I have been circling?
couldn't you have been circling?
couldn't he have been circling?
couldn't we have been circling?
couldn't you have been circling?
couldn't they have been circling?