could quantify
Verbo regular: quantify - quantified- quantified

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could quantify
you could quantify
he could quantify
we could quantify
you could quantify
they could quantify 	I could be quantifying
you could be quantifying
he could be quantifying
we could be quantifying
you could be quantifying
they could be quantifying	I could have quantified
you could have quantified
he could have quantified
we could have quantified
you could have quantified
they could have quantified	I could have been quantifying
you could have been quantifying
he could have been quantifying
we could have been quantifying
you could have been quantifying
they could have been quantifying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't quantify
you couldn't quantify
he couldn't quantify
we couldn't quantify
you couldn't quantify
they couldn't quantify 	I couldn't be quantifying
you couldn't be quantifying
he couldn't be quantifying
we couldn't be quantifying
you couldn't be quantifying
they couldn't be quantifying	I couldn't have quantified
you couldn't have quantified
he couldn't have quantified
we couldn't have quantified
you couldn't have quantified
they couldn't have quantified	I couldn't have been quantifying
you couldn't have been quantifying
he couldn't have been quantifying
we couldn't have been quantifying
you couldn't have been quantifying
they couldn't have been quantifying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I quantify?
could you quantify?
could he quantify?
could we quantify?
could you quantify?
could they quantify? 	could I be quantifying?
could you be quantifying?
could he be quantifying?
could we be quantifying?
could you be quantifying?
could they be quantifying? 	could I have quantified?
could you have quantified?
could he have quantified?
could we have quantified?
could you have quantified?
could they have quantified? 	could I have been quantifying?
could you have been quantifying?
could he have been quantifying?
could we have been quantifying?
could you have been quantifying?
could they have been quantifying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I quantify?
couldn't you quantify?
couldn't he quantify?
couldn't we quantify?
couldn't you quantify?
couldn't they quantify? 	couldn't I be quantifying?
couldn't you be quantifying?
couldn't he be quantifying?
couldn't we be quantifying?
couldn't you be quantifying?
couldn't they be quantifying? 	couldn't I have quantified?
couldn't you have quantified?
couldn't he have quantified?
couldn't we have quantified?
couldn't you have quantified?
couldn't they have quantified? 	couldn't I have been quantifying?
couldn't you have been quantifying?
couldn't he have been quantifying?
couldn't we have been quantifying?
couldn't you have been quantifying?
couldn't they have been quantifying?