could coincide
Verbo regular: coincide - coincided- coincided

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could coincide
you could coincide
he could coincide
we could coincide
you could coincide
they could coincide 	I could be coinciding
you could be coinciding
he could be coinciding
we could be coinciding
you could be coinciding
they could be coinciding	I could have coincided
you could have coincided
he could have coincided
we could have coincided
you could have coincided
they could have coincided	I could have been coinciding
you could have been coinciding
he could have been coinciding
we could have been coinciding
you could have been coinciding
they could have been coinciding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't coincide
you couldn't coincide
he couldn't coincide
we couldn't coincide
you couldn't coincide
they couldn't coincide 	I couldn't be coinciding
you couldn't be coinciding
he couldn't be coinciding
we couldn't be coinciding
you couldn't be coinciding
they couldn't be coinciding	I couldn't have coincided
you couldn't have coincided
he couldn't have coincided
we couldn't have coincided
you couldn't have coincided
they couldn't have coincided	I couldn't have been coinciding
you couldn't have been coinciding
he couldn't have been coinciding
we couldn't have been coinciding
you couldn't have been coinciding
they couldn't have been coinciding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I coincide?
could you coincide?
could he coincide?
could we coincide?
could you coincide?
could they coincide? 	could I be coinciding?
could you be coinciding?
could he be coinciding?
could we be coinciding?
could you be coinciding?
could they be coinciding? 	could I have coincided?
could you have coincided?
could he have coincided?
could we have coincided?
could you have coincided?
could they have coincided? 	could I have been coinciding?
could you have been coinciding?
could he have been coinciding?
could we have been coinciding?
could you have been coinciding?
could they have been coinciding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I coincide?
couldn't you coincide?
couldn't he coincide?
couldn't we coincide?
couldn't you coincide?
couldn't they coincide? 	couldn't I be coinciding?
couldn't you be coinciding?
couldn't he be coinciding?
couldn't we be coinciding?
couldn't you be coinciding?
couldn't they be coinciding? 	couldn't I have coincided?
couldn't you have coincided?
couldn't he have coincided?
couldn't we have coincided?
couldn't you have coincided?
couldn't they have coincided? 	couldn't I have been coinciding?
couldn't you have been coinciding?
couldn't he have been coinciding?
couldn't we have been coinciding?
couldn't you have been coinciding?
couldn't they have been coinciding?