could adopt
Verbo regular: adopt - adopted- adopted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could adopt
you could adopt
he could adopt
we could adopt
you could adopt
they could adopt 	I could be adopting
you could be adopting
he could be adopting
we could be adopting
you could be adopting
they could be adopting	I could have adopted
you could have adopted
he could have adopted
we could have adopted
you could have adopted
they could have adopted	I could have been adopting
you could have been adopting
he could have been adopting
we could have been adopting
you could have been adopting
they could have been adopting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't adopt
you couldn't adopt
he couldn't adopt
we couldn't adopt
you couldn't adopt
they couldn't adopt 	I couldn't be adopting
you couldn't be adopting
he couldn't be adopting
we couldn't be adopting
you couldn't be adopting
they couldn't be adopting	I couldn't have adopted
you couldn't have adopted
he couldn't have adopted
we couldn't have adopted
you couldn't have adopted
they couldn't have adopted	I couldn't have been adopting
you couldn't have been adopting
he couldn't have been adopting
we couldn't have been adopting
you couldn't have been adopting
they couldn't have been adopting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I adopt?
could you adopt?
could he adopt?
could we adopt?
could you adopt?
could they adopt? 	could I be adopting?
could you be adopting?
could he be adopting?
could we be adopting?
could you be adopting?
could they be adopting? 	could I have adopted?
could you have adopted?
could he have adopted?
could we have adopted?
could you have adopted?
could they have adopted? 	could I have been adopting?
could you have been adopting?
could he have been adopting?
could we have been adopting?
could you have been adopting?
could they have been adopting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I adopt?
couldn't you adopt?
couldn't he adopt?
couldn't we adopt?
couldn't you adopt?
couldn't they adopt? 	couldn't I be adopting?
couldn't you be adopting?
couldn't he be adopting?
couldn't we be adopting?
couldn't you be adopting?
couldn't they be adopting? 	couldn't I have adopted?
couldn't you have adopted?
couldn't he have adopted?
couldn't we have adopted?
couldn't you have adopted?
couldn't they have adopted? 	couldn't I have been adopting?
couldn't you have been adopting?
couldn't he have been adopting?
couldn't we have been adopting?
couldn't you have been adopting?
couldn't they have been adopting?