could cycle
Verbo regular: cycle - cycled- cycled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could cycle
you could cycle
he could cycle
we could cycle
you could cycle
they could cycle 	I could be cycling
you could be cycling
he could be cycling
we could be cycling
you could be cycling
they could be cycling	I could have cycled
you could have cycled
he could have cycled
we could have cycled
you could have cycled
they could have cycled	I could have been cycling
you could have been cycling
he could have been cycling
we could have been cycling
you could have been cycling
they could have been cycling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't cycle
you couldn't cycle
he couldn't cycle
we couldn't cycle
you couldn't cycle
they couldn't cycle 	I couldn't be cycling
you couldn't be cycling
he couldn't be cycling
we couldn't be cycling
you couldn't be cycling
they couldn't be cycling	I couldn't have cycled
you couldn't have cycled
he couldn't have cycled
we couldn't have cycled
you couldn't have cycled
they couldn't have cycled	I couldn't have been cycling
you couldn't have been cycling
he couldn't have been cycling
we couldn't have been cycling
you couldn't have been cycling
they couldn't have been cycling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I cycle?
could you cycle?
could he cycle?
could we cycle?
could you cycle?
could they cycle? 	could I be cycling?
could you be cycling?
could he be cycling?
could we be cycling?
could you be cycling?
could they be cycling? 	could I have cycled?
could you have cycled?
could he have cycled?
could we have cycled?
could you have cycled?
could they have cycled? 	could I have been cycling?
could you have been cycling?
could he have been cycling?
could we have been cycling?
could you have been cycling?
could they have been cycling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I cycle?
couldn't you cycle?
couldn't he cycle?
couldn't we cycle?
couldn't you cycle?
couldn't they cycle? 	couldn't I be cycling?
couldn't you be cycling?
couldn't he be cycling?
couldn't we be cycling?
couldn't you be cycling?
couldn't they be cycling? 	couldn't I have cycled?
couldn't you have cycled?
couldn't he have cycled?
couldn't we have cycled?
couldn't you have cycled?
couldn't they have cycled? 	couldn't I have been cycling?
couldn't you have been cycling?
couldn't he have been cycling?
couldn't we have been cycling?
couldn't you have been cycling?
couldn't they have been cycling?