should assemble
Regular verb: assemble - assembled- assembled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd assemble
you'd assemble
she'd assemble
we'd assemble
you'd assemble
they'd assemble 	I'd be assembling
you'd be assembling
she'd be assembling
we'd be assembling
you'd be assembling
they'd be assembling	I should've assembled
you should've assembled
she 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
she 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
she 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
she 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
she 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
she 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 she assemble?
should we assemble?
should you assemble?
should they assemble? 	should I be assembling?
should you be assembling?
should she be assembling?
should we be assembling?
should you be assembling?
should they be assembling? 	should I have assembled?
should you have assembled?
should she 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 she 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 she 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 she 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 she 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 she have been assembling?
shouldn't we have been assembling?
shouldn't you have been assembling?
shouldn't they have been assembling?