could coexist
Verbo regular: coexist - coexisted- coexisted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could coexist
you could coexist
he could coexist
we could coexist
you could coexist
they could coexist 	I could be coexisting
you could be coexisting
he could be coexisting
we could be coexisting
you could be coexisting
they could be coexisting	I could have coexisted
you could have coexisted
he could have coexisted
we could have coexisted
you could have coexisted
they could have coexisted	I could have been coexisting
you could have been coexisting
he could have been coexisting
we could have been coexisting
you could have been coexisting
they could have been coexisting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't coexist
you couldn't coexist
he couldn't coexist
we couldn't coexist
you couldn't coexist
they couldn't coexist 	I couldn't be coexisting
you couldn't be coexisting
he couldn't be coexisting
we couldn't be coexisting
you couldn't be coexisting
they couldn't be coexisting	I couldn't have coexisted
you couldn't have coexisted
he couldn't have coexisted
we couldn't have coexisted
you couldn't have coexisted
they couldn't have coexisted	I couldn't have been coexisting
you couldn't have been coexisting
he couldn't have been coexisting
we couldn't have been coexisting
you couldn't have been coexisting
they couldn't have been coexisting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I coexist?
could you coexist?
could he coexist?
could we coexist?
could you coexist?
could they coexist? 	could I be coexisting?
could you be coexisting?
could he be coexisting?
could we be coexisting?
could you be coexisting?
could they be coexisting? 	could I have coexisted?
could you have coexisted?
could he have coexisted?
could we have coexisted?
could you have coexisted?
could they have coexisted? 	could I have been coexisting?
could you have been coexisting?
could he have been coexisting?
could we have been coexisting?
could you have been coexisting?
could they have been coexisting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I coexist?
couldn't you coexist?
couldn't he coexist?
couldn't we coexist?
couldn't you coexist?
couldn't they coexist? 	couldn't I be coexisting?
couldn't you be coexisting?
couldn't he be coexisting?
couldn't we be coexisting?
couldn't you be coexisting?
couldn't they be coexisting? 	couldn't I have coexisted?
couldn't you have coexisted?
couldn't he have coexisted?
couldn't we have coexisted?
couldn't you have coexisted?
couldn't they have coexisted? 	couldn't I have been coexisting?
couldn't you have been coexisting?
couldn't he have been coexisting?
couldn't we have been coexisting?
couldn't you have been coexisting?
couldn't they have been coexisting?