can lessen
Verbo regular: lessen - lessened- lessened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can lessen
you can lessen
he can lessen
we can lessen
you can lessen
they can lessen 	I can be lessening
you can be lessening
he can be lessening
we can be lessening
you can be lessening
they can be lessening	I can have lessened
you can have lessened
he can have lessened
we can have lessened
you can have lessened
they can have lessened	I can have been lessening
you can have been lessening
he can have been lessening
we can have been lessening
you can have been lessening
they can have been lessening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't lessen
you can't lessen
he can't lessen
we can't lessen
you can't lessen
they can't lessen 	I can't be lessening
you can't be lessening
he can't be lessening
we can't be lessening
you can't be lessening
they can't be lessening	I can't have lessened
you can't have lessened
he can't have lessened
we can't have lessened
you can't have lessened
they can't have lessened	I can't have been lessening
you can't have been lessening
he can't have been lessening
we can't have been lessening
you can't have been lessening
they can't have been lessening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I lessen?
can you lessen?
can he lessen?
can we lessen?
can you lessen?
can they lessen? 	can I be lessening?
can you be lessening?
can he be lessening?
can we be lessening?
can you be lessening?
can they be lessening? 	can I have lessened?
can you have lessened?
can he have lessened?
can we have lessened?
can you have lessened?
can they have lessened? 	can I have been lessening?
can you have been lessening?
can he have been lessening?
can we have been lessening?
can you have been lessening?
can they have been lessening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I lessen?
can't you lessen?
can't he lessen?
can't we lessen?
can't you lessen?
can't they lessen? 	can't I be lessening?
can't you be lessening?
can't he be lessening?
can't we be lessening?
can't you be lessening?
can't they be lessening? 	can't I have lessened?
can't you have lessened?
can't he have lessened?
can't we have lessened?
can't you have lessened?
can't they have lessened? 	can't I have been lessening?
can't you have been lessening?
can't he have been lessening?
can't we have been lessening?
can't you have been lessening?
can't they have been lessening?