should prep
Regular verb: prep - preped- preped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd prep
you'd prep
he'd prep
we'd prep
you'd prep
they'd prep 	I'd be preping
you'd be preping
he'd be preping
we'd be preping
you'd be preping
they'd be preping	I should've preped
you should've preped
he should've preped
we should've preped
you should've preped
they should've preped	I should've been preping
you should've been preping
he should've been preping
we should've been preping
you should've been preping
they should've been preping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't prep
you shouldn't prep
he shouldn't prep
we shouldn't prep
you shouldn't prep
they shouldn't prep 	I shouldn't be preping
you shouldn't be preping
he shouldn't be preping
we shouldn't be preping
you shouldn't be preping
they shouldn't be preping	I shouldn't have preped
you shouldn't have preped
he shouldn't have preped
we shouldn't have preped
you shouldn't have preped
they shouldn't have preped	I shouldn't have been preping
you shouldn't have been preping
he shouldn't have been preping
we shouldn't have been preping
you shouldn't have been preping
they shouldn't have been preping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I prep?
should you prep?
should he prep?
should we prep?
should you prep?
should they prep? 	should I be preping?
should you be preping?
should he be preping?
should we be preping?
should you be preping?
should they be preping? 	should I have preped?
should you have preped?
should he have preped?
should we have preped?
should you have preped?
should they have preped? 	should I have been preping?
should you have been preping?
should he have been preping?
should we have been preping?
should you have been preping?
should they have been preping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I prep?
shouldn't you prep?
shouldn't he prep?
shouldn't we prep?
shouldn't you prep?
shouldn't they prep? 	shouldn't I be preping?
shouldn't you be preping?
shouldn't he be preping?
shouldn't we be preping?
shouldn't you be preping?
shouldn't they be preping? 	shouldn't I have preped?
shouldn't you have preped?
shouldn't he have preped?
shouldn't we have preped?
shouldn't you have preped?
shouldn't they have preped? 	shouldn't I have been preping?
shouldn't you have been preping?
shouldn't he have been preping?
shouldn't we have been preping?
shouldn't you have been preping?
shouldn't they have been preping?