could earn
Verbo regular: earn - earned- earned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could earn
you could earn
she could earn
we could earn
you could earn
they could earn 	I could be earning
you could be earning
she could be earning
we could be earning
you could be earning
they could be earning	I could have earned
you could have earned
she could have earned
we could have earned
you could have earned
they could have earned	I could have been earning
you could have been earning
she could have been earning
we could have been earning
you could have been earning
they could have been earning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not earn
you could not earn
she could not earn
we could not earn
you could not earn
they could not earn 	I could not be earning
you could not be earning
she could not be earning
we could not be earning
you could not be earning
they could not be earning	I could not have earned
you could not have earned
she could not have earned
we could not have earned
you could not have earned
they could not have earned	I could not have been earning
you could not have been earning
she could not have been earning
we could not have been earning
you could not have been earning
they could not have been earning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I earn?
could you earn?
could she earn?
could we earn?
could you earn?
could they earn? 	could I be earning?
could you be earning?
could she be earning?
could we be earning?
could you be earning?
could they be earning? 	could I have earned?
could you have earned?
could she have earned?
could we have earned?
could you have earned?
could they have earned? 	could I have been earning?
could you have been earning?
could she have been earning?
could we have been earning?
could you have been earning?
could they have been earning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not earn?
could you not earn?
could she not earn?
could we not earn?
could you not earn?
could they not earn? 	could I not be earning?
could you not be earning?
could she not be earning?
could we not be earning?
could you not be earning?
could they not be earning? 	could I not have earned?
could you not have earned?
could she not have earned?
could we not have earned?
could you not have earned?
could they not have earned? 	could I not have been earning?
could you not have been earning?
could she not have been earning?
could we not have been earning?
could you not have been earning?
could they not have been earning?