should conceal
Regular verb: conceal - concealed- concealed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd conceal
you'd conceal
he'd conceal
we'd conceal
you'd conceal
they'd conceal 	I'd be concealing
you'd be concealing
he'd be concealing
we'd be concealing
you'd be concealing
they'd be concealing	I should've concealed
you should've concealed
he should've concealed
we should've concealed
you should've concealed
they should've concealed	I should've been concealing
you should've been concealing
he should've been concealing
we should've been concealing
you should've been concealing
they should've been concealing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't conceal
you shouldn't conceal
he shouldn't conceal
we shouldn't conceal
you shouldn't conceal
they shouldn't conceal 	I shouldn't be concealing
you shouldn't be concealing
he shouldn't be concealing
we shouldn't be concealing
you shouldn't be concealing
they shouldn't be concealing	I shouldn't have concealed
you shouldn't have concealed
he shouldn't have concealed
we shouldn't have concealed
you shouldn't have concealed
they shouldn't have concealed	I shouldn't have been concealing
you shouldn't have been concealing
he shouldn't have been concealing
we shouldn't have been concealing
you shouldn't have been concealing
they shouldn't have been concealing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I conceal?
should you conceal?
should he conceal?
should we conceal?
should you conceal?
should they conceal? 	should I be concealing?
should you be concealing?
should he be concealing?
should we be concealing?
should you be concealing?
should they be concealing? 	should I have concealed?
should you have concealed?
should he have concealed?
should we have concealed?
should you have concealed?
should they have concealed? 	should I have been concealing?
should you have been concealing?
should he have been concealing?
should we have been concealing?
should you have been concealing?
should they have been concealing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I conceal?
shouldn't you conceal?
shouldn't he conceal?
shouldn't we conceal?
shouldn't you conceal?
shouldn't they conceal? 	shouldn't I be concealing?
shouldn't you be concealing?
shouldn't he be concealing?
shouldn't we be concealing?
shouldn't you be concealing?
shouldn't they be concealing? 	shouldn't I have concealed?
shouldn't you have concealed?
shouldn't he have concealed?
shouldn't we have concealed?
shouldn't you have concealed?
shouldn't they have concealed? 	shouldn't I have been concealing?
shouldn't you have been concealing?
shouldn't he have been concealing?
shouldn't we have been concealing?
shouldn't you have been concealing?
shouldn't they have been concealing?