could fool
Verbo regular: fool - fooled- fooled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could fool
you could fool
she could fool
we could fool
you could fool
they could fool 	I could be fooling
you could be fooling
she could be fooling
we could be fooling
you could be fooling
they could be fooling	I could have fooled
you could have fooled
she could have fooled
we could have fooled
you could have fooled
they could have fooled	I could have been fooling
you could have been fooling
she could have been fooling
we could have been fooling
you could have been fooling
they could have been fooling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not fool
you could not fool
she could not fool
we could not fool
you could not fool
they could not fool 	I could not be fooling
you could not be fooling
she could not be fooling
we could not be fooling
you could not be fooling
they could not be fooling	I could not have fooled
you could not have fooled
she could not have fooled
we could not have fooled
you could not have fooled
they could not have fooled	I could not have been fooling
you could not have been fooling
she could not have been fooling
we could not have been fooling
you could not have been fooling
they could not have been fooling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I fool?
could you fool?
could she fool?
could we fool?
could you fool?
could they fool? 	could I be fooling?
could you be fooling?
could she be fooling?
could we be fooling?
could you be fooling?
could they be fooling? 	could I have fooled?
could you have fooled?
could she have fooled?
could we have fooled?
could you have fooled?
could they have fooled? 	could I have been fooling?
could you have been fooling?
could she have been fooling?
could we have been fooling?
could you have been fooling?
could they have been fooling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not fool?
could you not fool?
could she not fool?
could we not fool?
could you not fool?
could they not fool? 	could I not be fooling?
could you not be fooling?
could she not be fooling?
could we not be fooling?
could you not be fooling?
could they not be fooling? 	could I not have fooled?
could you not have fooled?
could she not have fooled?
could we not have fooled?
could you not have fooled?
could they not have fooled? 	could I not have been fooling?
could you not have been fooling?
could she not have been fooling?
could we not have been fooling?
could you not have been fooling?
could they not have been fooling?