can haven
Verbo regular: haven - havened- havened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can haven
you can haven
he can haven
we can haven
you can haven
they can haven 	I can be havening
you can be havening
he can be havening
we can be havening
you can be havening
they can be havening	I can have havened
you can have havened
he can have havened
we can have havened
you can have havened
they can have havened	I can have been havening
you can have been havening
he can have been havening
we can have been havening
you can have been havening
they can have been havening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot haven
you cannot haven
he cannot haven
we cannot haven
you cannot haven
they cannot haven 	I cannot be havening
you cannot be havening
he cannot be havening
we cannot be havening
you cannot be havening
they cannot be havening	I cannot have havened
you cannot have havened
he cannot have havened
we cannot have havened
you cannot have havened
they cannot have havened	I cannot have been havening
you cannot have been havening
he cannot have been havening
we cannot have been havening
you cannot have been havening
they cannot have been havening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I haven?
can you haven?
can he haven?
can we haven?
can you haven?
can they haven? 	can I be havening?
can you be havening?
can he be havening?
can we be havening?
can you be havening?
can they be havening? 	can I have havened?
can you have havened?
can he have havened?
can we have havened?
can you have havened?
can they have havened? 	can I have been havening?
can you have been havening?
can he have been havening?
can we have been havening?
can you have been havening?
can they have been havening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not haven?
can you not haven?
can he not haven?
can we not haven?
can you not haven?
can they not haven? 	can I not be havening?
can you not be havening?
can he not be havening?
can we not be havening?
can you not be havening?
can they not be havening? 	can I not have havened?
can you not have havened?
can he not have havened?
can we not have havened?
can you not have havened?
can they not have havened? 	can I not have been havening?
can you not have been havening?
can he not have been havening?
can we not have been havening?
can you not have been havening?
can they not have been havening?