can kitten
Verbo regular: kitten - kittened- kittened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can kitten
you can kitten
he can kitten
we can kitten
you can kitten
they can kitten 	I can be kittening
you can be kittening
he can be kittening
we can be kittening
you can be kittening
they can be kittening	I can have kittened
you can have kittened
he can have kittened
we can have kittened
you can have kittened
they can have kittened	I can have been kittening
you can have been kittening
he can have been kittening
we can have been kittening
you can have been kittening
they can have been kittening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot kitten
you cannot kitten
he cannot kitten
we cannot kitten
you cannot kitten
they cannot kitten 	I cannot be kittening
you cannot be kittening
he cannot be kittening
we cannot be kittening
you cannot be kittening
they cannot be kittening	I cannot have kittened
you cannot have kittened
he cannot have kittened
we cannot have kittened
you cannot have kittened
they cannot have kittened	I cannot have been kittening
you cannot have been kittening
he cannot have been kittening
we cannot have been kittening
you cannot have been kittening
they cannot have been kittening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I kitten?
can you kitten?
can he kitten?
can we kitten?
can you kitten?
can they kitten? 	can I be kittening?
can you be kittening?
can he be kittening?
can we be kittening?
can you be kittening?
can they be kittening? 	can I have kittened?
can you have kittened?
can he have kittened?
can we have kittened?
can you have kittened?
can they have kittened? 	can I have been kittening?
can you have been kittening?
can he have been kittening?
can we have been kittening?
can you have been kittening?
can they have been kittening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not kitten?
can you not kitten?
can he not kitten?
can we not kitten?
can you not kitten?
can they not kitten? 	can I not be kittening?
can you not be kittening?
can he not be kittening?
can we not be kittening?
can you not be kittening?
can they not be kittening? 	can I not have kittened?
can you not have kittened?
can he not have kittened?
can we not have kittened?
can you not have kittened?
can they not have kittened? 	can I not have been kittening?
can you not have been kittening?
can he not have been kittening?
can we not have been kittening?
can you not have been kittening?
can they not have been kittening?