should sinter
Verbo regular: sinter - sintered- sintered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should sinter
you should sinter
she should sinter
we should sinter
you should sinter
they should sinter 	I should be sintering
you should be sintering
she should be sintering
we should be sintering
you should be sintering
they should be sintering	I should have sintered
you should have sintered
she should have sintered
we should have sintered
you should have sintered
they should have sintered	I should have been sintering
you should have been sintering
she should have been sintering
we should have been sintering
you should have been sintering
they should have been sintering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not sinter
you should not sinter
she should not sinter
we should not sinter
you should not sinter
they should not sinter 	I should not be sintering
you should not be sintering
she should not be sintering
we should not be sintering
you should not be sintering
they should not be sintering	I should not have sintered
you should not have sintered
she should not have sintered
we should not have sintered
you should not have sintered
they should not have sintered	I should not have been sintering
you should not have been sintering
she should not have been sintering
we should not have been sintering
you should not have been sintering
they should not have been sintering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I sinter?
should you sinter?
should she sinter?
should we sinter?
should you sinter?
should they sinter? 	should I be sintering?
should you be sintering?
should she be sintering?
should we be sintering?
should you be sintering?
should they be sintering? 	should I have sintered?
should you have sintered?
should she have sintered?
should we have sintered?
should you have sintered?
should they have sintered? 	should I have been sintering?
should you have been sintering?
should she have been sintering?
should we have been sintering?
should you have been sintering?
should they have been sintering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not sinter?
should you not sinter?
should she not sinter?
should we not sinter?
should you not sinter?
should they not sinter? 	should I not be sintering?
should you not be sintering?
should she not be sintering?
should we not be sintering?
should you not be sintering?
should they not be sintering? 	should I not have sintered?
should you not have sintered?
should she not have sintered?
should we not have sintered?
should you not have sintered?
should they not have sintered? 	should I not have been sintering?
should you not have been sintering?
should she not have been sintering?
should we not have been sintering?
should you not have been sintering?
should they not have been sintering?