should kitten
Verbo regular: kitten - kittened- kittened

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

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

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

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