should keen
Regular verb: keen - keened- keened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd keen
you'd keen
he'd keen
we'd keen
you'd keen
they'd keen 	I'd be keening
you'd be keening
he'd be keening
we'd be keening
you'd be keening
they'd be keening	I should've keened
you should've keened
he should've keened
we should've keened
you should've keened
they should've keened	I should've been keening
you should've been keening
he should've been keening
we should've been keening
you should've been keening
they should've been keening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't keen
you shouldn't keen
he shouldn't keen
we shouldn't keen
you shouldn't keen
they shouldn't keen 	I shouldn't be keening
you shouldn't be keening
he shouldn't be keening
we shouldn't be keening
you shouldn't be keening
they shouldn't be keening	I shouldn't have keened
you shouldn't have keened
he shouldn't have keened
we shouldn't have keened
you shouldn't have keened
they shouldn't have keened	I shouldn't have been keening
you shouldn't have been keening
he shouldn't have been keening
we shouldn't have been keening
you shouldn't have been keening
they shouldn't have been keening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I keen?
should you keen?
should he keen?
should we keen?
should you keen?
should they keen? 	should I be keening?
should you be keening?
should he be keening?
should we be keening?
should you be keening?
should they be keening? 	should I have keened?
should you have keened?
should he have keened?
should we have keened?
should you have keened?
should they have keened? 	should I have been keening?
should you have been keening?
should he have been keening?
should we have been keening?
should you have been keening?
should they have been keening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I keen?
shouldn't you keen?
shouldn't he keen?
shouldn't we keen?
shouldn't you keen?
shouldn't they keen? 	shouldn't I be keening?
shouldn't you be keening?
shouldn't he be keening?
shouldn't we be keening?
shouldn't you be keening?
shouldn't they be keening? 	shouldn't I have keened?
shouldn't you have keened?
shouldn't he have keened?
shouldn't we have keened?
shouldn't you have keened?
shouldn't they have keened? 	shouldn't I have been keening?
shouldn't you have been keening?
shouldn't he have been keening?
shouldn't we have been keening?
shouldn't you have been keening?
shouldn't they have been keening?