should lesson
Verbo regular: lesson - lessoned- lessoned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should lesson
you should lesson
he should lesson
we should lesson
you should lesson
they should lesson 	I should be lessoning
you should be lessoning
he should be lessoning
we should be lessoning
you should be lessoning
they should be lessoning	I should have lessoned
you should have lessoned
he should have lessoned
we should have lessoned
you should have lessoned
they should have lessoned	I should have been lessoning
you should have been lessoning
he should have been lessoning
we should have been lessoning
you should have been lessoning
they should have been lessoning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not lesson
you should not lesson
he should not lesson
we should not lesson
you should not lesson
they should not lesson 	I should not be lessoning
you should not be lessoning
he should not be lessoning
we should not be lessoning
you should not be lessoning
they should not be lessoning	I should not have lessoned
you should not have lessoned
he should not have lessoned
we should not have lessoned
you should not have lessoned
they should not have lessoned	I should not have been lessoning
you should not have been lessoning
he should not have been lessoning
we should not have been lessoning
you should not have been lessoning
they should not have been lessoning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I lesson?
should you lesson?
should he lesson?
should we lesson?
should you lesson?
should they lesson? 	should I be lessoning?
should you be lessoning?
should he be lessoning?
should we be lessoning?
should you be lessoning?
should they be lessoning? 	should I have lessoned?
should you have lessoned?
should he have lessoned?
should we have lessoned?
should you have lessoned?
should they have lessoned? 	should I have been lessoning?
should you have been lessoning?
should he have been lessoning?
should we have been lessoning?
should you have been lessoning?
should they have been lessoning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not lesson?
should you not lesson?
should he not lesson?
should we not lesson?
should you not lesson?
should they not lesson? 	should I not be lessoning?
should you not be lessoning?
should he not be lessoning?
should we not be lessoning?
should you not be lessoning?
should they not be lessoning? 	should I not have lessoned?
should you not have lessoned?
should he not have lessoned?
should we not have lessoned?
should you not have lessoned?
should they not have lessoned? 	should I not have been lessoning?
should you not have been lessoning?
should he not have been lessoning?
should we not have been lessoning?
should you not have been lessoning?
should they not have been lessoning?