could affirm
Verbo regular: affirm - affirmed- affirmed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could affirm
you could affirm
he could affirm
we could affirm
you could affirm
they could affirm 	I could be affirming
you could be affirming
he could be affirming
we could be affirming
you could be affirming
they could be affirming	I could have affirmed
you could have affirmed
he could have affirmed
we could have affirmed
you could have affirmed
they could have affirmed	I could have been affirming
you could have been affirming
he could have been affirming
we could have been affirming
you could have been affirming
they could have been affirming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not affirm
you could not affirm
he could not affirm
we could not affirm
you could not affirm
they could not affirm 	I could not be affirming
you could not be affirming
he could not be affirming
we could not be affirming
you could not be affirming
they could not be affirming	I could not have affirmed
you could not have affirmed
he could not have affirmed
we could not have affirmed
you could not have affirmed
they could not have affirmed	I could not have been affirming
you could not have been affirming
he could not have been affirming
we could not have been affirming
you could not have been affirming
they could not have been affirming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I affirm?
could you affirm?
could he affirm?
could we affirm?
could you affirm?
could they affirm? 	could I be affirming?
could you be affirming?
could he be affirming?
could we be affirming?
could you be affirming?
could they be affirming? 	could I have affirmed?
could you have affirmed?
could he have affirmed?
could we have affirmed?
could you have affirmed?
could they have affirmed? 	could I have been affirming?
could you have been affirming?
could he have been affirming?
could we have been affirming?
could you have been affirming?
could they have been affirming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not affirm?
could you not affirm?
could he not affirm?
could we not affirm?
could you not affirm?
could they not affirm? 	could I not be affirming?
could you not be affirming?
could he not be affirming?
could we not be affirming?
could you not be affirming?
could they not be affirming? 	could I not have affirmed?
could you not have affirmed?
could he not have affirmed?
could we not have affirmed?
could you not have affirmed?
could they not have affirmed? 	could I not have been affirming?
could you not have been affirming?
could he not have been affirming?
could we not have been affirming?
could you not have been affirming?
could they not have been affirming?