could argue
Verbo regular: argue - argued- argued

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could argue
you could argue
he could argue
we could argue
you could argue
they could argue 	I could be arguing
you could be arguing
he could be arguing
we could be arguing
you could be arguing
they could be arguing	I could have argued
you could have argued
he could have argued
we could have argued
you could have argued
they could have argued	I could have been arguing
you could have been arguing
he could have been arguing
we could have been arguing
you could have been arguing
they could have been arguing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not argue
you could not argue
he could not argue
we could not argue
you could not argue
they could not argue 	I could not be arguing
you could not be arguing
he could not be arguing
we could not be arguing
you could not be arguing
they could not be arguing	I could not have argued
you could not have argued
he could not have argued
we could not have argued
you could not have argued
they could not have argued	I could not have been arguing
you could not have been arguing
he could not have been arguing
we could not have been arguing
you could not have been arguing
they could not have been arguing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I argue?
could you argue?
could he argue?
could we argue?
could you argue?
could they argue? 	could I be arguing?
could you be arguing?
could he be arguing?
could we be arguing?
could you be arguing?
could they be arguing? 	could I have argued?
could you have argued?
could he have argued?
could we have argued?
could you have argued?
could they have argued? 	could I have been arguing?
could you have been arguing?
could he have been arguing?
could we have been arguing?
could you have been arguing?
could they have been arguing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not argue?
could you not argue?
could he not argue?
could we not argue?
could you not argue?
could they not argue? 	could I not be arguing?
could you not be arguing?
could he not be arguing?
could we not be arguing?
could you not be arguing?
could they not be arguing? 	could I not have argued?
could you not have argued?
could he not have argued?
could we not have argued?
could you not have argued?
could they not have argued? 	could I not have been arguing?
could you not have been arguing?
could he not have been arguing?
could we not have been arguing?
could you not have been arguing?
could they not have been arguing?