could conjugate
Verbo regular: conjugate - conjugated- conjugated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could conjugate
you could conjugate
he could conjugate
we could conjugate
you could conjugate
they could conjugate 	I could be conjugating
you could be conjugating
he could be conjugating
we could be conjugating
you could be conjugating
they could be conjugating	I could have conjugated
you could have conjugated
he could have conjugated
we could have conjugated
you could have conjugated
they could have conjugated	I could have been conjugating
you could have been conjugating
he could have been conjugating
we could have been conjugating
you could have been conjugating
they could have been conjugating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not conjugate
you could not conjugate
he could not conjugate
we could not conjugate
you could not conjugate
they could not conjugate 	I could not be conjugating
you could not be conjugating
he could not be conjugating
we could not be conjugating
you could not be conjugating
they could not be conjugating	I could not have conjugated
you could not have conjugated
he could not have conjugated
we could not have conjugated
you could not have conjugated
they could not have conjugated	I could not have been conjugating
you could not have been conjugating
he could not have been conjugating
we could not have been conjugating
you could not have been conjugating
they could not have been conjugating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I conjugate?
could you conjugate?
could he conjugate?
could we conjugate?
could you conjugate?
could they conjugate? 	could I be conjugating?
could you be conjugating?
could he be conjugating?
could we be conjugating?
could you be conjugating?
could they be conjugating? 	could I have conjugated?
could you have conjugated?
could he have conjugated?
could we have conjugated?
could you have conjugated?
could they have conjugated? 	could I have been conjugating?
could you have been conjugating?
could he have been conjugating?
could we have been conjugating?
could you have been conjugating?
could they have been conjugating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not conjugate?
could you not conjugate?
could he not conjugate?
could we not conjugate?
could you not conjugate?
could they not conjugate? 	could I not be conjugating?
could you not be conjugating?
could he not be conjugating?
could we not be conjugating?
could you not be conjugating?
could they not be conjugating? 	could I not have conjugated?
could you not have conjugated?
could he not have conjugated?
could we not have conjugated?
could you not have conjugated?
could they not have conjugated? 	could I not have been conjugating?
could you not have been conjugating?
could he not have been conjugating?
could we not have been conjugating?
could you not have been conjugating?
could they not have been conjugating?