can sadden
Verbo regular: sadden - saddened- saddened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can sadden
you can sadden
he can sadden
we can sadden
you can sadden
they can sadden 	I can be saddening
you can be saddening
he can be saddening
we can be saddening
you can be saddening
they can be saddening	I can have saddened
you can have saddened
he can have saddened
we can have saddened
you can have saddened
they can have saddened	I can have been saddening
you can have been saddening
he can have been saddening
we can have been saddening
you can have been saddening
they can have been saddening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot sadden
you cannot sadden
he cannot sadden
we cannot sadden
you cannot sadden
they cannot sadden 	I cannot be saddening
you cannot be saddening
he cannot be saddening
we cannot be saddening
you cannot be saddening
they cannot be saddening	I cannot have saddened
you cannot have saddened
he cannot have saddened
we cannot have saddened
you cannot have saddened
they cannot have saddened	I cannot have been saddening
you cannot have been saddening
he cannot have been saddening
we cannot have been saddening
you cannot have been saddening
they cannot have been saddening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I sadden?
can you sadden?
can he sadden?
can we sadden?
can you sadden?
can they sadden? 	can I be saddening?
can you be saddening?
can he be saddening?
can we be saddening?
can you be saddening?
can they be saddening? 	can I have saddened?
can you have saddened?
can he have saddened?
can we have saddened?
can you have saddened?
can they have saddened? 	can I have been saddening?
can you have been saddening?
can he have been saddening?
can we have been saddening?
can you have been saddening?
can they have been saddening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not sadden?
can you not sadden?
can he not sadden?
can we not sadden?
can you not sadden?
can they not sadden? 	can I not be saddening?
can you not be saddening?
can he not be saddening?
can we not be saddening?
can you not be saddening?
can they not be saddening? 	can I not have saddened?
can you not have saddened?
can he not have saddened?
can we not have saddened?
can you not have saddened?
can they not have saddened? 	can I not have been saddening?
can you not have been saddening?
can he not have been saddening?
can we not have been saddening?
can you not have been saddening?
can they not have been saddening?