should instrument
Regular verb: instrument - instrumented- instrumented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd instrument
you'd instrument
he'd instrument
we'd instrument
you'd instrument
they'd instrument 	I'd be instrumenting
you'd be instrumenting
he'd be instrumenting
we'd be instrumenting
you'd be instrumenting
they'd be instrumenting	I should've instrumented
you should've instrumented
he should've instrumented
we should've instrumented
you should've instrumented
they should've instrumented	I should've been instrumenting
you should've been instrumenting
he should've been instrumenting
we should've been instrumenting
you should've been instrumenting
they should've been instrumenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't instrument
you shouldn't instrument
he shouldn't instrument
we shouldn't instrument
you shouldn't instrument
they shouldn't instrument 	I shouldn't be instrumenting
you shouldn't be instrumenting
he shouldn't be instrumenting
we shouldn't be instrumenting
you shouldn't be instrumenting
they shouldn't be instrumenting	I shouldn't have instrumented
you shouldn't have instrumented
he shouldn't have instrumented
we shouldn't have instrumented
you shouldn't have instrumented
they shouldn't have instrumented	I shouldn't have been instrumenting
you shouldn't have been instrumenting
he shouldn't have been instrumenting
we shouldn't have been instrumenting
you shouldn't have been instrumenting
they shouldn't have been instrumenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I instrument?
should you instrument?
should he instrument?
should we instrument?
should you instrument?
should they instrument? 	should I be instrumenting?
should you be instrumenting?
should he be instrumenting?
should we be instrumenting?
should you be instrumenting?
should they be instrumenting? 	should I have instrumented?
should you have instrumented?
should he have instrumented?
should we have instrumented?
should you have instrumented?
should they have instrumented? 	should I have been instrumenting?
should you have been instrumenting?
should he have been instrumenting?
should we have been instrumenting?
should you have been instrumenting?
should they have been instrumenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I instrument?
shouldn't you instrument?
shouldn't he instrument?
shouldn't we instrument?
shouldn't you instrument?
shouldn't they instrument? 	shouldn't I be instrumenting?
shouldn't you be instrumenting?
shouldn't he be instrumenting?
shouldn't we be instrumenting?
shouldn't you be instrumenting?
shouldn't they be instrumenting? 	shouldn't I have instrumented?
shouldn't you have instrumented?
shouldn't he have instrumented?
shouldn't we have instrumented?
shouldn't you have instrumented?
shouldn't they have instrumented? 	shouldn't I have been instrumenting?
shouldn't you have been instrumenting?
shouldn't he have been instrumenting?
shouldn't we have been instrumenting?
shouldn't you have been instrumenting?
shouldn't they have been instrumenting?