should tiller
Regular verb: tiller - tillered- tillered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd tiller
you'd tiller
he'd tiller
we'd tiller
you'd tiller
they'd tiller 	I'd be tillering
you'd be tillering
he'd be tillering
we'd be tillering
you'd be tillering
they'd be tillering	I should've tillered
you should've tillered
he should've tillered
we should've tillered
you should've tillered
they should've tillered	I should've been tillering
you should've been tillering
he should've been tillering
we should've been tillering
you should've been tillering
they should've been tillering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't tiller
you shouldn't tiller
he shouldn't tiller
we shouldn't tiller
you shouldn't tiller
they shouldn't tiller 	I shouldn't be tillering
you shouldn't be tillering
he shouldn't be tillering
we shouldn't be tillering
you shouldn't be tillering
they shouldn't be tillering	I shouldn't have tillered
you shouldn't have tillered
he shouldn't have tillered
we shouldn't have tillered
you shouldn't have tillered
they shouldn't have tillered	I shouldn't have been tillering
you shouldn't have been tillering
he shouldn't have been tillering
we shouldn't have been tillering
you shouldn't have been tillering
they shouldn't have been tillering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I tiller?
should you tiller?
should he tiller?
should we tiller?
should you tiller?
should they tiller? 	should I be tillering?
should you be tillering?
should he be tillering?
should we be tillering?
should you be tillering?
should they be tillering? 	should I have tillered?
should you have tillered?
should he have tillered?
should we have tillered?
should you have tillered?
should they have tillered? 	should I have been tillering?
should you have been tillering?
should he have been tillering?
should we have been tillering?
should you have been tillering?
should they have been tillering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I tiller?
shouldn't you tiller?
shouldn't he tiller?
shouldn't we tiller?
shouldn't you tiller?
shouldn't they tiller? 	shouldn't I be tillering?
shouldn't you be tillering?
shouldn't he be tillering?
shouldn't we be tillering?
shouldn't you be tillering?
shouldn't they be tillering? 	shouldn't I have tillered?
shouldn't you have tillered?
shouldn't he have tillered?
shouldn't we have tillered?
shouldn't you have tillered?
shouldn't they have tillered? 	shouldn't I have been tillering?
shouldn't you have been tillering?
shouldn't he have been tillering?
shouldn't we have been tillering?
shouldn't you have been tillering?
shouldn't they have been tillering?