should sinter
Regular verb: sinter - sintered- sintered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd sinter
you'd sinter
he'd sinter
we'd sinter
you'd sinter
they'd sinter 	I'd be sintering
you'd be sintering
he'd be sintering
we'd be sintering
you'd be sintering
they'd be sintering	I should've sintered
you should've sintered
he should've sintered
we should've sintered
you should've sintered
they should've sintered	I should've been sintering
you should've been sintering
he should've been sintering
we should've been sintering
you should've been sintering
they should've been sintering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't sinter
you shouldn't sinter
he shouldn't sinter
we shouldn't sinter
you shouldn't sinter
they shouldn't sinter 	I shouldn't be sintering
you shouldn't be sintering
he shouldn't be sintering
we shouldn't be sintering
you shouldn't be sintering
they shouldn't be sintering	I shouldn't have sintered
you shouldn't have sintered
he shouldn't have sintered
we shouldn't have sintered
you shouldn't have sintered
they shouldn't have sintered	I shouldn't have been sintering
you shouldn't have been sintering
he shouldn't have been sintering
we shouldn't have been sintering
you shouldn't have been sintering
they shouldn't have been sintering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I sinter?
should you sinter?
should he sinter?
should we sinter?
should you sinter?
should they sinter? 	should I be sintering?
should you be sintering?
should he be sintering?
should we be sintering?
should you be sintering?
should they be sintering? 	should I have sintered?
should you have sintered?
should he 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 he have been sintering?
should we have been sintering?
should you have been sintering?
should they have been sintering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I sinter?
shouldn't you sinter?
shouldn't he sinter?
shouldn't we sinter?
shouldn't you sinter?
shouldn't they sinter? 	shouldn't I be sintering?
shouldn't you be sintering?
shouldn't he be sintering?
shouldn't we be sintering?
shouldn't you be sintering?
shouldn't they be sintering? 	shouldn't I have sintered?
shouldn't you have sintered?
shouldn't he have sintered?
shouldn't we have sintered?
shouldn't you have sintered?
shouldn't they have sintered? 	shouldn't I have been sintering?
shouldn't you have been sintering?
shouldn't he have been sintering?
shouldn't we have been sintering?
shouldn't you have been sintering?
shouldn't they have been sintering?