ought to instrument
Regular verb: instrument - instrumented- instrumented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to instrument
you ought to instrument
he ought to instrument
we ought to instrument
you ought to instrument
they ought to instrument 	I ought to be instrumenting
you ought to be instrumenting
he ought to be instrumenting
we ought to be instrumenting
you ought to be instrumenting
they ought to be instrumenting	I ought to have instrumented
you ought to have instrumented
he ought to have instrumented
we ought to have instrumented
you ought to have instrumented
they ought to have instrumented	I ought to have been instrumenting
you ought to have been instrumenting
he ought to have been instrumenting
we ought to have been instrumenting
you ought to have been instrumenting
they ought to have been instrumenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to instrument
you ought not to instrument
he ought not to instrument
we ought not to instrument
you ought not to instrument
they ought not to instrument 	I ought not to instrumenting
you ought not to instrumenting
he ought not to instrumenting
we ought not to instrumenting
you ought not to instrumenting
they ought not to instrumenting	I ought not to have instrumented
you ought not to have instrumented
he ought not to have instrumented
we ought not to have instrumented
you ought not to have instrumented
they ought not to have instrumented	I ought not to have been instrumenting
you ought not to have been instrumenting
he ought not to have been instrumenting
we ought not to have been instrumenting
you ought not to have been instrumenting
they ought not to have been instrumenting	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to instrument?
ought you not to instrument?
ought he not to instrument?
ought we not to instrument?
ought you not to instrument?
ought they not to instrument? 	ought I not to be instrumenting?
ought you not to be instrumenting?
ought he not to be instrumenting?
ought we not to be instrumenting?
ought you not to be instrumenting?
ought they not to be instrumenting? 	ought I not to have instrumented?
ought you not to have instrumented?
ought he not to have instrumented?
ought we not to have instrumented?
ought you not to have instrumented?
ought they not to have instrumented? 	ought I not to have been instrumenting?
ought you not to have been instrumenting?
ought he not to have been instrumenting?
ought we not to have been instrumenting?
ought you not to have been instrumenting?
ought they not to have been instrumenting?