could regain
Verbo regular: regain - regained- regained

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could regain
you could regain
she could regain
we could regain
you could regain
they could regain 	I could be regaining
you could be regaining
she could be regaining
we could be regaining
you could be regaining
they could be regaining	I could have regained
you could have regained
she could have regained
we could have regained
you could have regained
they could have regained	I could have been regaining
you could have been regaining
she could have been regaining
we could have been regaining
you could have been regaining
they could have been regaining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not regain
you could not regain
she could not regain
we could not regain
you could not regain
they could not regain 	I could not be regaining
you could not be regaining
she could not be regaining
we could not be regaining
you could not be regaining
they could not be regaining	I could not have regained
you could not have regained
she could not have regained
we could not have regained
you could not have regained
they could not have regained	I could not have been regaining
you could not have been regaining
she could not have been regaining
we could not have been regaining
you could not have been regaining
they could not have been regaining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I regain?
could you regain?
could she regain?
could we regain?
could you regain?
could they regain? 	could I be regaining?
could you be regaining?
could she be regaining?
could we be regaining?
could you be regaining?
could they be regaining? 	could I have regained?
could you have regained?
could she have regained?
could we have regained?
could you have regained?
could they have regained? 	could I have been regaining?
could you have been regaining?
could she have been regaining?
could we have been regaining?
could you have been regaining?
could they have been regaining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not regain?
could you not regain?
could she not regain?
could we not regain?
could you not regain?
could they not regain? 	could I not be regaining?
could you not be regaining?
could she not be regaining?
could we not be regaining?
could you not be regaining?
could they not be regaining? 	could I not have regained?
could you not have regained?
could she not have regained?
could we not have regained?
could you not have regained?
could they not have regained? 	could I not have been regaining?
could you not have been regaining?
could she not have been regaining?
could we not have been regaining?
could you not have been regaining?
could they not have been regaining?