could simplify
Verbo regular: simplify - simplified- simplified

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could simplify
you could simplify
he could simplify
we could simplify
you could simplify
they could simplify 	I could be simplifying
you could be simplifying
he could be simplifying
we could be simplifying
you could be simplifying
they could be simplifying	I could have simplified
you could have simplified
he could have simplified
we could have simplified
you could have simplified
they could have simplified	I could have been simplifying
you could have been simplifying
he could have been simplifying
we could have been simplifying
you could have been simplifying
they could have been simplifying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't simplify
you couldn't simplify
he couldn't simplify
we couldn't simplify
you couldn't simplify
they couldn't simplify 	I couldn't be simplifying
you couldn't be simplifying
he couldn't be simplifying
we couldn't be simplifying
you couldn't be simplifying
they couldn't be simplifying	I couldn't have simplified
you couldn't have simplified
he couldn't have simplified
we couldn't have simplified
you couldn't have simplified
they couldn't have simplified	I couldn't have been simplifying
you couldn't have been simplifying
he couldn't have been simplifying
we couldn't have been simplifying
you couldn't have been simplifying
they couldn't have been simplifying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I simplify?
could you simplify?
could he simplify?
could we simplify?
could you simplify?
could they simplify? 	could I be simplifying?
could you be simplifying?
could he be simplifying?
could we be simplifying?
could you be simplifying?
could they be simplifying? 	could I have simplified?
could you have simplified?
could he have simplified?
could we have simplified?
could you have simplified?
could they have simplified? 	could I have been simplifying?
could you have been simplifying?
could he have been simplifying?
could we have been simplifying?
could you have been simplifying?
could they have been simplifying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I simplify?
couldn't you simplify?
couldn't he simplify?
couldn't we simplify?
couldn't you simplify?
couldn't they simplify? 	couldn't I be simplifying?
couldn't you be simplifying?
couldn't he be simplifying?
couldn't we be simplifying?
couldn't you be simplifying?
couldn't they be simplifying? 	couldn't I have simplified?
couldn't you have simplified?
couldn't he have simplified?
couldn't we have simplified?
couldn't you have simplified?
couldn't they have simplified? 	couldn't I have been simplifying?
couldn't you have been simplifying?
couldn't he have been simplifying?
couldn't we have been simplifying?
couldn't you have been simplifying?
couldn't they have been simplifying?