should trill
Regular verb: trill - trilled- trilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd trill
you'd trill
she'd trill
we'd trill
you'd trill
they'd trill 	I'd be trilling
you'd be trilling
she'd be trilling
we'd be trilling
you'd be trilling
they'd be trilling	I should've trilled
you should've trilled
she should've trilled
we should've trilled
you should've trilled
they should've trilled	I should've been trilling
you should've been trilling
she should've been trilling
we should've been trilling
you should've been trilling
they should've been trilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't trill
you shouldn't trill
she shouldn't trill
we shouldn't trill
you shouldn't trill
they shouldn't trill 	I shouldn't be trilling
you shouldn't be trilling
she shouldn't be trilling
we shouldn't be trilling
you shouldn't be trilling
they shouldn't be trilling	I shouldn't have trilled
you shouldn't have trilled
she shouldn't have trilled
we shouldn't have trilled
you shouldn't have trilled
they shouldn't have trilled	I shouldn't have been trilling
you shouldn't have been trilling
she shouldn't have been trilling
we shouldn't have been trilling
you shouldn't have been trilling
they shouldn't have been trilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I trill?
should you trill?
should she trill?
should we trill?
should you trill?
should they trill? 	should I be trilling?
should you be trilling?
should she be trilling?
should we be trilling?
should you be trilling?
should they be trilling? 	should I have trilled?
should you have trilled?
should she have trilled?
should we have trilled?
should you have trilled?
should they have trilled? 	should I have been trilling?
should you have been trilling?
should she have been trilling?
should we have been trilling?
should you have been trilling?
should they have been trilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I trill?
shouldn't you trill?
shouldn't she trill?
shouldn't we trill?
shouldn't you trill?
shouldn't they trill? 	shouldn't I be trilling?
shouldn't you be trilling?
shouldn't she be trilling?
shouldn't we be trilling?
shouldn't you be trilling?
shouldn't they be trilling? 	shouldn't I have trilled?
shouldn't you have trilled?
shouldn't she have trilled?
shouldn't we have trilled?
shouldn't you have trilled?
shouldn't they have trilled? 	shouldn't I have been trilling?
shouldn't you have been trilling?
shouldn't she have been trilling?
shouldn't we have been trilling?
shouldn't you have been trilling?
shouldn't they have been trilling?