should tittup
Regular verb: tittup - tittuped- tittuped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd tittup
you'd tittup
she'd tittup
we'd tittup
you'd tittup
they'd tittup 	I'd be tittuping
you'd be tittuping
she'd be tittuping
we'd be tittuping
you'd be tittuping
they'd be tittuping	I should've tittuped
you should've tittuped
she should've tittuped
we should've tittuped
you should've tittuped
they should've tittuped	I should've been tittuping
you should've been tittuping
she should've been tittuping
we should've been tittuping
you should've been tittuping
they should've been tittuping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't tittup
you shouldn't tittup
she shouldn't tittup
we shouldn't tittup
you shouldn't tittup
they shouldn't tittup 	I shouldn't be tittuping
you shouldn't be tittuping
she shouldn't be tittuping
we shouldn't be tittuping
you shouldn't be tittuping
they shouldn't be tittuping	I shouldn't have tittuped
you shouldn't have tittuped
she shouldn't have tittuped
we shouldn't have tittuped
you shouldn't have tittuped
they shouldn't have tittuped	I shouldn't have been tittuping
you shouldn't have been tittuping
she shouldn't have been tittuping
we shouldn't have been tittuping
you shouldn't have been tittuping
they shouldn't have been tittuping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I tittup?
should you tittup?
should she tittup?
should we tittup?
should you tittup?
should they tittup? 	should I be tittuping?
should you be tittuping?
should she be tittuping?
should we be tittuping?
should you be tittuping?
should they be tittuping? 	should I have tittuped?
should you have tittuped?
should she have tittuped?
should we have tittuped?
should you have tittuped?
should they have tittuped? 	should I have been tittuping?
should you have been tittuping?
should she have been tittuping?
should we have been tittuping?
should you have been tittuping?
should they have been tittuping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I tittup?
shouldn't you tittup?
shouldn't she tittup?
shouldn't we tittup?
shouldn't you tittup?
shouldn't they tittup? 	shouldn't I be tittuping?
shouldn't you be tittuping?
shouldn't she be tittuping?
shouldn't we be tittuping?
shouldn't you be tittuping?
shouldn't they be tittuping? 	shouldn't I have tittuped?
shouldn't you have tittuped?
shouldn't she have tittuped?
shouldn't we have tittuped?
shouldn't you have tittuped?
shouldn't they have tittuped? 	shouldn't I have been tittuping?
shouldn't you have been tittuping?
shouldn't she have been tittuping?
shouldn't we have been tittuping?
shouldn't you have been tittuping?
shouldn't they have been tittuping?