could learn
Verbo irregular: learn - learned, learnt- learned, learnt

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could learn
you could learn
he could learn
we could learn
you could learn
they could learn 	I could be learning
you could be learning
he could be learning
we could be learning
you could be learning
they could be learning	I could have learned, learnt
you could have learned, learnt
he could have learned, learnt
we could have learned, learnt
you could have learned, learnt
they could have learned, learnt	I could have been learning
you could have been learning
he could have been learning
we could have been learning
you could have been learning
they could have been learning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not learn
you could not learn
he could not learn
we could not learn
you could not learn
they could not learn 	I could not be learning
you could not be learning
he could not be learning
we could not be learning
you could not be learning
they could not be learning	I could not have learned, learnt
you could not have learned, learnt
he could not have learned, learnt
we could not have learned, learnt
you could not have learned, learnt
they could not have learned, learnt	I could not have been learning
you could not have been learning
he could not have been learning
we could not have been learning
you could not have been learning
they could not have been learning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I learn?
could you learn?
could he learn?
could we learn?
could you learn?
could they learn? 	could I be learning?
could you be learning?
could he be learning?
could we be learning?
could you be learning?
could they be learning? 	could I have learned, learnt?
could you have learned, learnt?
could he have learned, learnt?
could we have learned, learnt?
could you have learned, learnt?
could they have learned, learnt? 	could I have been learning?
could you have been learning?
could he have been learning?
could we have been learning?
could you have been learning?
could they have been learning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not learn?
could you not learn?
could he not learn?
could we not learn?
could you not learn?
could they not learn? 	could I not be learning?
could you not be learning?
could he not be learning?
could we not be learning?
could you not be learning?
could they not be learning? 	could I not have learned, learnt?
could you not have learned, learnt?
could he not have learned, learnt?
could we not have learned, learnt?
could you not have learned, learnt?
could they not have learned, learnt? 	could I not have been learning?
could you not have been learning?
could he not have been learning?
could we not have been learning?
could you not have been learning?
could they not have been learning?