should smile
Verbo regular: smile - smiled- smiled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should smile
you should smile
he should smile
we should smile
you should smile
they should smile 	I should be smiling
you should be smiling
he should be smiling
we should be smiling
you should be smiling
they should be smiling	I should have smiled
you should have smiled
he should have smiled
we should have smiled
you should have smiled
they should have smiled	I should have been smiling
you should have been smiling
he should have been smiling
we should have been smiling
you should have been smiling
they should have been smiling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not smile
you should not smile
he should not smile
we should not smile
you should not smile
they should not smile 	I should not be smiling
you should not be smiling
he should not be smiling
we should not be smiling
you should not be smiling
they should not be smiling	I should not have smiled
you should not have smiled
he should not have smiled
we should not have smiled
you should not have smiled
they should not have smiled	I should not have been smiling
you should not have been smiling
he should not have been smiling
we should not have been smiling
you should not have been smiling
they should not have been smiling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I smile?
should you smile?
should he smile?
should we smile?
should you smile?
should they smile? 	should I be smiling?
should you be smiling?
should he be smiling?
should we be smiling?
should you be smiling?
should they be smiling? 	should I have smiled?
should you have smiled?
should he have smiled?
should we have smiled?
should you have smiled?
should they have smiled? 	should I have been smiling?
should you have been smiling?
should he have been smiling?
should we have been smiling?
should you have been smiling?
should they have been smiling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not smile?
should you not smile?
should he not smile?
should we not smile?
should you not smile?
should they not smile? 	should I not be smiling?
should you not be smiling?
should he not be smiling?
should we not be smiling?
should you not be smiling?
should they not be smiling? 	should I not have smiled?
should you not have smiled?
should he not have smiled?
should we not have smiled?
should you not have smiled?
should they not have smiled? 	should I not have been smiling?
should you not have been smiling?
should he not have been smiling?
should we not have been smiling?
should you not have been smiling?
should they not have been smiling?