should grain
Regular verb: grain - grained- grained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd grain
you'd grain
he'd grain
we'd grain
you'd grain
they'd grain 	I'd be graining
you'd be graining
he'd be graining
we'd be graining
you'd be graining
they'd be graining	I should've grained
you should've grained
he should've grained
we should've grained
you should've grained
they should've grained	I should've been graining
you should've been graining
he should've been graining
we should've been graining
you should've been graining
they should've been graining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't grain
you shouldn't grain
he shouldn't grain
we shouldn't grain
you shouldn't grain
they shouldn't grain 	I shouldn't be graining
you shouldn't be graining
he shouldn't be graining
we shouldn't be graining
you shouldn't be graining
they shouldn't be graining	I shouldn't have grained
you shouldn't have grained
he shouldn't have grained
we shouldn't have grained
you shouldn't have grained
they shouldn't have grained	I shouldn't have been graining
you shouldn't have been graining
he shouldn't have been graining
we shouldn't have been graining
you shouldn't have been graining
they shouldn't have been graining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I grain?
should you grain?
should he grain?
should we grain?
should you grain?
should they grain? 	should I be graining?
should you be graining?
should he be graining?
should we be graining?
should you be graining?
should they be graining? 	should I have grained?
should you have grained?
should he have grained?
should we have grained?
should you have grained?
should they have grained? 	should I have been graining?
should you have been graining?
should he have been graining?
should we have been graining?
should you have been graining?
should they have been graining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I grain?
shouldn't you grain?
shouldn't he grain?
shouldn't we grain?
shouldn't you grain?
shouldn't they grain? 	shouldn't I be graining?
shouldn't you be graining?
shouldn't he be graining?
shouldn't we be graining?
shouldn't you be graining?
shouldn't they be graining? 	shouldn't I have grained?
shouldn't you have grained?
shouldn't he have grained?
shouldn't we have grained?
shouldn't you have grained?
shouldn't they have grained? 	shouldn't I have been graining?
shouldn't you have been graining?
shouldn't he have been graining?
shouldn't we have been graining?
shouldn't you have been graining?
shouldn't they have been graining?