could convince
Verbo regular: convince - convinced- convinced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could convince
you could convince
she could convince
we could convince
you could convince
they could convince 	I could be convincing
you could be convincing
she could be convincing
we could be convincing
you could be convincing
they could be convincing	I could have convinced
you could have convinced
she could have convinced
we could have convinced
you could have convinced
they could have convinced	I could have been convincing
you could have been convincing
she could have been convincing
we could have been convincing
you could have been convincing
they could have been convincing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not convince
you could not convince
she could not convince
we could not convince
you could not convince
they could not convince 	I could not be convincing
you could not be convincing
she could not be convincing
we could not be convincing
you could not be convincing
they could not be convincing	I could not have convinced
you could not have convinced
she could not have convinced
we could not have convinced
you could not have convinced
they could not have convinced	I could not have been convincing
you could not have been convincing
she could not have been convincing
we could not have been convincing
you could not have been convincing
they could not have been convincing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I convince?
could you convince?
could she convince?
could we convince?
could you convince?
could they convince? 	could I be convincing?
could you be convincing?
could she be convincing?
could we be convincing?
could you be convincing?
could they be convincing? 	could I have convinced?
could you have convinced?
could she have convinced?
could we have convinced?
could you have convinced?
could they have convinced? 	could I have been convincing?
could you have been convincing?
could she have been convincing?
could we have been convincing?
could you have been convincing?
could they have been convincing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not convince?
could you not convince?
could she not convince?
could we not convince?
could you not convince?
could they not convince? 	could I not be convincing?
could you not be convincing?
could she not be convincing?
could we not be convincing?
could you not be convincing?
could they not be convincing? 	could I not have convinced?
could you not have convinced?
could she not have convinced?
could we not have convinced?
could you not have convinced?
could they not have convinced? 	could I not have been convincing?
could you not have been convincing?
could she not have been convincing?
could we not have been convincing?
could you not have been convincing?
could they not have been convincing?