could margin
Verbo regular: margin - margined- margined

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could margin
you could margin
she could margin
we could margin
you could margin
they could margin 	I could be margining
you could be margining
she could be margining
we could be margining
you could be margining
they could be margining	I could have margined
you could have margined
she could have margined
we could have margined
you could have margined
they could have margined	I could have been margining
you could have been margining
she could have been margining
we could have been margining
you could have been margining
they could have been margining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not margin
you could not margin
she could not margin
we could not margin
you could not margin
they could not margin 	I could not be margining
you could not be margining
she could not be margining
we could not be margining
you could not be margining
they could not be margining	I could not have margined
you could not have margined
she could not have margined
we could not have margined
you could not have margined
they could not have margined	I could not have been margining
you could not have been margining
she could not have been margining
we could not have been margining
you could not have been margining
they could not have been margining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I margin?
could you margin?
could she margin?
could we margin?
could you margin?
could they margin? 	could I be margining?
could you be margining?
could she be margining?
could we be margining?
could you be margining?
could they be margining? 	could I have margined?
could you have margined?
could she have margined?
could we have margined?
could you have margined?
could they have margined? 	could I have been margining?
could you have been margining?
could she have been margining?
could we have been margining?
could you have been margining?
could they have been margining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not margin?
could you not margin?
could she not margin?
could we not margin?
could you not margin?
could they not margin? 	could I not be margining?
could you not be margining?
could she not be margining?
could we not be margining?
could you not be margining?
could they not be margining? 	could I not have margined?
could you not have margined?
could she not have margined?
could we not have margined?
could you not have margined?
could they not have margined? 	could I not have been margining?
could you not have been margining?
could she not have been margining?
could we not have been margining?
could you not have been margining?
could they not have been margining?