should assemble
Regular verb: assemble - assembled- assembled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd assemble
you'd assemble
he'd assemble
we'd assemble
you'd assemble
they'd assemble 	I'd be assembling
you'd be assembling
he'd be assembling
we'd be assembling
you'd be assembling
they'd be assembling	I should've assembled
you should've assembled
he should've assembled
we should've assembled
you should've assembled
they should've assembled	I should've been assembling
you should've been assembling
he should've been assembling
we should've been assembling
you should've been assembling
they should've been assembling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't assemble
you shouldn't assemble
he shouldn't assemble
we shouldn't assemble
you shouldn't assemble
they shouldn't assemble 	I shouldn't be assembling
you shouldn't be assembling
he shouldn't be assembling
we shouldn't be assembling
you shouldn't be assembling
they shouldn't be assembling	I shouldn't have assembled
you shouldn't have assembled
he shouldn't have assembled
we shouldn't have assembled
you shouldn't have assembled
they shouldn't have assembled	I shouldn't have been assembling
you shouldn't have been assembling
he shouldn't have been assembling
we shouldn't have been assembling
you shouldn't have been assembling
they shouldn't have been assembling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I assemble?
should you assemble?
should he assemble?
should we assemble?
should you assemble?
should they assemble? 	should I be assembling?
should you be assembling?
should he be assembling?
should we be assembling?
should you be assembling?
should they be assembling? 	should I have assembled?
should you have assembled?
should he have assembled?
should we have assembled?
should you have assembled?
should they have assembled? 	should I have been assembling?
should you have been assembling?
should he have been assembling?
should we have been assembling?
should you have been assembling?
should they have been assembling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I assemble?
shouldn't you assemble?
shouldn't he assemble?
shouldn't we assemble?
shouldn't you assemble?
shouldn't they assemble? 	shouldn't I be assembling?
shouldn't you be assembling?
shouldn't he be assembling?
shouldn't we be assembling?
shouldn't you be assembling?
shouldn't they be assembling? 	shouldn't I have assembled?
shouldn't you have assembled?
shouldn't he have assembled?
shouldn't we have assembled?
shouldn't you have assembled?
shouldn't they have assembled? 	shouldn't I have been assembling?
shouldn't you have been assembling?
shouldn't he have been assembling?
shouldn't we have been assembling?
shouldn't you have been assembling?
shouldn't they have been assembling?