could ignite
Verbo regular: ignite - ignited- ignited

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could ignite
you could ignite
he could ignite
we could ignite
you could ignite
they could ignite 	I could be igniting
you could be igniting
he could be igniting
we could be igniting
you could be igniting
they could be igniting	I could have ignited
you could have ignited
he could have ignited
we could have ignited
you could have ignited
they could have ignited	I could have been igniting
you could have been igniting
he could have been igniting
we could have been igniting
you could have been igniting
they could have been igniting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't ignite
you couldn't ignite
he couldn't ignite
we couldn't ignite
you couldn't ignite
they couldn't ignite 	I couldn't be igniting
you couldn't be igniting
he couldn't be igniting
we couldn't be igniting
you couldn't be igniting
they couldn't be igniting	I couldn't have ignited
you couldn't have ignited
he couldn't have ignited
we couldn't have ignited
you couldn't have ignited
they couldn't have ignited	I couldn't have been igniting
you couldn't have been igniting
he couldn't have been igniting
we couldn't have been igniting
you couldn't have been igniting
they couldn't have been igniting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I ignite?
could you ignite?
could he ignite?
could we ignite?
could you ignite?
could they ignite? 	could I be igniting?
could you be igniting?
could he be igniting?
could we be igniting?
could you be igniting?
could they be igniting? 	could I have ignited?
could you have ignited?
could he have ignited?
could we have ignited?
could you have ignited?
could they have ignited? 	could I have been igniting?
could you have been igniting?
could he have been igniting?
could we have been igniting?
could you have been igniting?
could they have been igniting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I ignite?
couldn't you ignite?
couldn't he ignite?
couldn't we ignite?
couldn't you ignite?
couldn't they ignite? 	couldn't I be igniting?
couldn't you be igniting?
couldn't he be igniting?
couldn't we be igniting?
couldn't you be igniting?
couldn't they be igniting? 	couldn't I have ignited?
couldn't you have ignited?
couldn't he have ignited?
couldn't we have ignited?
couldn't you have ignited?
couldn't they have ignited? 	couldn't I have been igniting?
couldn't you have been igniting?
couldn't he have been igniting?
couldn't we have been igniting?
couldn't you have been igniting?
couldn't they have been igniting?