can leaf
Verbo regular: leaf - leafed- leafed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can leaf
you can leaf
he can leaf
we can leaf
you can leaf
they can leaf 	I can be leafing
you can be leafing
he can be leafing
we can be leafing
you can be leafing
they can be leafing	I can have leafed
you can have leafed
he can have leafed
we can have leafed
you can have leafed
they can have leafed	I can have been leafing
you can have been leafing
he can have been leafing
we can have been leafing
you can have been leafing
they can have been leafing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot leaf
you cannot leaf
he cannot leaf
we cannot leaf
you cannot leaf
they cannot leaf 	I cannot be leafing
you cannot be leafing
he cannot be leafing
we cannot be leafing
you cannot be leafing
they cannot be leafing	I cannot have leafed
you cannot have leafed
he cannot have leafed
we cannot have leafed
you cannot have leafed
they cannot have leafed	I cannot have been leafing
you cannot have been leafing
he cannot have been leafing
we cannot have been leafing
you cannot have been leafing
they cannot have been leafing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I leaf?
can you leaf?
can he leaf?
can we leaf?
can you leaf?
can they leaf? 	can I be leafing?
can you be leafing?
can he be leafing?
can we be leafing?
can you be leafing?
can they be leafing? 	can I have leafed?
can you have leafed?
can he have leafed?
can we have leafed?
can you have leafed?
can they have leafed? 	can I have been leafing?
can you have been leafing?
can he have been leafing?
can we have been leafing?
can you have been leafing?
can they have been leafing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not leaf?
can you not leaf?
can he not leaf?
can we not leaf?
can you not leaf?
can they not leaf? 	can I not be leafing?
can you not be leafing?
can he not be leafing?
can we not be leafing?
can you not be leafing?
can they not be leafing? 	can I not have leafed?
can you not have leafed?
can he not have leafed?
can we not have leafed?
can you not have leafed?
can they not have leafed? 	can I not have been leafing?
can you not have been leafing?
can he not have been leafing?
can we not have been leafing?
can you not have been leafing?
can they not have been leafing?