should sail
Regular verb: sail - sailed- sailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd sail
you'd sail
he'd sail
we'd sail
you'd sail
they'd sail 	I'd be sailing
you'd be sailing
he'd be sailing
we'd be sailing
you'd be sailing
they'd be sailing	I should've sailed
you should've sailed
he should've sailed
we should've sailed
you should've sailed
they should've sailed	I should've been sailing
you should've been sailing
he should've been sailing
we should've been sailing
you should've been sailing
they should've been sailing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't sail
you shouldn't sail
he shouldn't sail
we shouldn't sail
you shouldn't sail
they shouldn't sail 	I shouldn't be sailing
you shouldn't be sailing
he shouldn't be sailing
we shouldn't be sailing
you shouldn't be sailing
they shouldn't be sailing	I shouldn't have sailed
you shouldn't have sailed
he shouldn't have sailed
we shouldn't have sailed
you shouldn't have sailed
they shouldn't have sailed	I shouldn't have been sailing
you shouldn't have been sailing
he shouldn't have been sailing
we shouldn't have been sailing
you shouldn't have been sailing
they shouldn't have been sailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I sail?
should you sail?
should he sail?
should we sail?
should you sail?
should they sail? 	should I be sailing?
should you be sailing?
should he be sailing?
should we be sailing?
should you be sailing?
should they be sailing? 	should I have sailed?
should you have sailed?
should he have sailed?
should we have sailed?
should you have sailed?
should they have sailed? 	should I have been sailing?
should you have been sailing?
should he have been sailing?
should we have been sailing?
should you have been sailing?
should they have been sailing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I sail?
shouldn't you sail?
shouldn't he sail?
shouldn't we sail?
shouldn't you sail?
shouldn't they sail? 	shouldn't I be sailing?
shouldn't you be sailing?
shouldn't he be sailing?
shouldn't we be sailing?
shouldn't you be sailing?
shouldn't they be sailing? 	shouldn't I have sailed?
shouldn't you have sailed?
shouldn't he have sailed?
shouldn't we have sailed?
shouldn't you have sailed?
shouldn't they have sailed? 	shouldn't I have been sailing?
shouldn't you have been sailing?
shouldn't he have been sailing?
shouldn't we have been sailing?
shouldn't you have been sailing?
shouldn't they have been sailing?