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 couldn't margin
you couldn't margin
she couldn't margin
we couldn't margin
you couldn't margin
they couldn't margin 	I couldn't be margining
you couldn't be margining
she couldn't be margining
we couldn't be margining
you couldn't be margining
they couldn't be margining	I couldn't have margined
you couldn't have margined
she couldn't have margined
we couldn't have margined
you couldn't have margined
they couldn't have margined	I couldn't have been margining
you couldn't have been margining
she couldn't have been margining
we couldn't have been margining
you couldn't have been margining
they couldn't 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 	
couldn't I margin?
couldn't you margin?
couldn't she margin?
couldn't we margin?
couldn't you margin?
couldn't they margin? 	couldn't I be margining?
couldn't you be margining?
couldn't she be margining?
couldn't we be margining?
couldn't you be margining?
couldn't they be margining? 	couldn't I have margined?
couldn't you have margined?
couldn't she have margined?
couldn't we have margined?
couldn't you have margined?
couldn't they have margined? 	couldn't I have been margining?
couldn't you have been margining?
couldn't she have been margining?
couldn't we have been margining?
couldn't you have been margining?
couldn't they have been margining?