could involute
Verbo regular: involute - involuted- involuted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could involute
you could involute
he could involute
we could involute
you could involute
they could involute 	I could be involuting
you could be involuting
he could be involuting
we could be involuting
you could be involuting
they could be involuting	I could have involuted
you could have involuted
he could have involuted
we could have involuted
you could have involuted
they could have involuted	I could have been involuting
you could have been involuting
he could have been involuting
we could have been involuting
you could have been involuting
they could have been involuting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't involute
you couldn't involute
he couldn't involute
we couldn't involute
you couldn't involute
they couldn't involute 	I couldn't be involuting
you couldn't be involuting
he couldn't be involuting
we couldn't be involuting
you couldn't be involuting
they couldn't be involuting	I couldn't have involuted
you couldn't have involuted
he couldn't have involuted
we couldn't have involuted
you couldn't have involuted
they couldn't have involuted	I couldn't have been involuting
you couldn't have been involuting
he couldn't have been involuting
we couldn't have been involuting
you couldn't have been involuting
they couldn't have been involuting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I involute?
could you involute?
could he involute?
could we involute?
could you involute?
could they involute? 	could I be involuting?
could you be involuting?
could he be involuting?
could we be involuting?
could you be involuting?
could they be involuting? 	could I have involuted?
could you have involuted?
could he have involuted?
could we have involuted?
could you have involuted?
could they have involuted? 	could I have been involuting?
could you have been involuting?
could he have been involuting?
could we have been involuting?
could you have been involuting?
could they have been involuting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I involute?
couldn't you involute?
couldn't he involute?
couldn't we involute?
couldn't you involute?
couldn't they involute? 	couldn't I be involuting?
couldn't you be involuting?
couldn't he be involuting?
couldn't we be involuting?
couldn't you be involuting?
couldn't they be involuting? 	couldn't I have involuted?
couldn't you have involuted?
couldn't he have involuted?
couldn't we have involuted?
couldn't you have involuted?
couldn't they have involuted? 	couldn't I have been involuting?
couldn't you have been involuting?
couldn't he have been involuting?
couldn't we have been involuting?
couldn't you have been involuting?
couldn't they have been involuting?