can foil
Verbo regular: foil - foiled- foiled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can foil
you can foil
he can foil
we can foil
you can foil
they can foil 	I can be foiling
you can be foiling
he can be foiling
we can be foiling
you can be foiling
they can be foiling	I can have foiled
you can have foiled
he can have foiled
we can have foiled
you can have foiled
they can have foiled	I can have been foiling
you can have been foiling
he can have been foiling
we can have been foiling
you can have been foiling
they can have been foiling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't foil
you can't foil
he can't foil
we can't foil
you can't foil
they can't foil 	I can't be foiling
you can't be foiling
he can't be foiling
we can't be foiling
you can't be foiling
they can't be foiling	I can't have foiled
you can't have foiled
he can't have foiled
we can't have foiled
you can't have foiled
they can't have foiled	I can't have been foiling
you can't have been foiling
he can't have been foiling
we can't have been foiling
you can't have been foiling
they can't have been foiling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I foil?
can you foil?
can he foil?
can we foil?
can you foil?
can they foil? 	can I be foiling?
can you be foiling?
can he be foiling?
can we be foiling?
can you be foiling?
can they be foiling? 	can I have foiled?
can you have foiled?
can he have foiled?
can we have foiled?
can you have foiled?
can they have foiled? 	can I have been foiling?
can you have been foiling?
can he have been foiling?
can we have been foiling?
can you have been foiling?
can they have been foiling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I foil?
can't you foil?
can't he foil?
can't we foil?
can't you foil?
can't they foil? 	can't I be foiling?
can't you be foiling?
can't he be foiling?
can't we be foiling?
can't you be foiling?
can't they be foiling? 	can't I have foiled?
can't you have foiled?
can't he have foiled?
can't we have foiled?
can't you have foiled?
can't they have foiled? 	can't I have been foiling?
can't you have been foiling?
can't he have been foiling?
can't we have been foiling?
can't you have been foiling?
can't they have been foiling?