could affix
Verbo regular: affix - affixed- affixed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could affix
you could affix
he could affix
we could affix
you could affix
they could affix 	I could be affixing
you could be affixing
he could be affixing
we could be affixing
you could be affixing
they could be affixing	I could have affixed
you could have affixed
he could have affixed
we could have affixed
you could have affixed
they could have affixed	I could have been affixing
you could have been affixing
he could have been affixing
we could have been affixing
you could have been affixing
they could have been affixing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not affix
you could not affix
he could not affix
we could not affix
you could not affix
they could not affix 	I could not be affixing
you could not be affixing
he could not be affixing
we could not be affixing
you could not be affixing
they could not be affixing	I could not have affixed
you could not have affixed
he could not have affixed
we could not have affixed
you could not have affixed
they could not have affixed	I could not have been affixing
you could not have been affixing
he could not have been affixing
we could not have been affixing
you could not have been affixing
they could not have been affixing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I affix?
could you affix?
could he affix?
could we affix?
could you affix?
could they affix? 	could I be affixing?
could you be affixing?
could he be affixing?
could we be affixing?
could you be affixing?
could they be affixing? 	could I have affixed?
could you have affixed?
could he have affixed?
could we have affixed?
could you have affixed?
could they have affixed? 	could I have been affixing?
could you have been affixing?
could he have been affixing?
could we have been affixing?
could you have been affixing?
could they have been affixing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not affix?
could you not affix?
could he not affix?
could we not affix?
could you not affix?
could they not affix? 	could I not be affixing?
could you not be affixing?
could he not be affixing?
could we not be affixing?
could you not be affixing?
could they not be affixing? 	could I not have affixed?
could you not have affixed?
could he not have affixed?
could we not have affixed?
could you not have affixed?
could they not have affixed? 	could I not have been affixing?
could you not have been affixing?
could he not have been affixing?
could we not have been affixing?
could you not have been affixing?
could they not have been affixing?