should serrate
Regular verb: serrate - serrated- serrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd serrate
you'd serrate
he'd serrate
we'd serrate
you'd serrate
they'd serrate 	I'd be serrating
you'd be serrating
he'd be serrating
we'd be serrating
you'd be serrating
they'd be serrating	I should've serrated
you should've serrated
he should've serrated
we should've serrated
you should've serrated
they should've serrated	I should've been serrating
you should've been serrating
he should've been serrating
we should've been serrating
you should've been serrating
they should've been serrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't serrate
you shouldn't serrate
he shouldn't serrate
we shouldn't serrate
you shouldn't serrate
they shouldn't serrate 	I shouldn't be serrating
you shouldn't be serrating
he shouldn't be serrating
we shouldn't be serrating
you shouldn't be serrating
they shouldn't be serrating	I shouldn't have serrated
you shouldn't have serrated
he shouldn't have serrated
we shouldn't have serrated
you shouldn't have serrated
they shouldn't have serrated	I shouldn't have been serrating
you shouldn't have been serrating
he shouldn't have been serrating
we shouldn't have been serrating
you shouldn't have been serrating
they shouldn't have been serrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I serrate?
should you serrate?
should he serrate?
should we serrate?
should you serrate?
should they serrate? 	should I be serrating?
should you be serrating?
should he be serrating?
should we be serrating?
should you be serrating?
should they be serrating? 	should I have serrated?
should you have serrated?
should he have serrated?
should we have serrated?
should you have serrated?
should they have serrated? 	should I have been serrating?
should you have been serrating?
should he have been serrating?
should we have been serrating?
should you have been serrating?
should they have been serrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I serrate?
shouldn't you serrate?
shouldn't he serrate?
shouldn't we serrate?
shouldn't you serrate?
shouldn't they serrate? 	shouldn't I be serrating?
shouldn't you be serrating?
shouldn't he be serrating?
shouldn't we be serrating?
shouldn't you be serrating?
shouldn't they be serrating? 	shouldn't I have serrated?
shouldn't you have serrated?
shouldn't he have serrated?
shouldn't we have serrated?
shouldn't you have serrated?
shouldn't they have serrated? 	shouldn't I have been serrating?
shouldn't you have been serrating?
shouldn't he have been serrating?
shouldn't we have been serrating?
shouldn't you have been serrating?
shouldn't they have been serrating?