must instrument
Verbe régulier : instrument - instrumented- instrumented
Traduction française : orchestrer - munir ou équiper d'instruments 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must instrument
you must instrument
he must instrument
we must instrument
you must instrument
they must instrument 	I must be instrumenting
you must be instrumenting
he must be instrumenting
we must be instrumenting
you must be instrumenting
they must be instrumenting	I must have instrumented
you must have instrumented
he must have instrumented
we must have instrumented
you must have instrumented
they must have instrumented	I must have been instrumenting
you must have been instrumenting
he must have been instrumenting
we must have been instrumenting
you must have been instrumenting
they must have been instrumenting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not instrument
you must not instrument
he must not instrument
we must not instrument
you must not instrument
they must not instrument 	I must not be instrumenting
you must not be instrumenting
he must not be instrumenting
we must not be instrumenting
you must not be instrumenting
they must not be instrumenting	I must not have instrumented
you must not have instrumented
he must not have instrumented
we must not have instrumented
you must not have instrumented
they must not have instrumented	I must not have been instrumenting
you must not have been instrumenting
he must not have been instrumenting
we must not have been instrumenting
you must not have been instrumenting
they must not have been instrumenting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I instrument?
must you instrument?
must he instrument?
must we instrument?
must you instrument?
must they instrument? 	must I be instrumenting?
must you be instrumenting?
must he be instrumenting?
must we be instrumenting?
must you be instrumenting?
must they be instrumenting? 	must I have instrumented?
must you have instrumented?
must he have instrumented?
must we have instrumented?
must you have instrumented?
must they have instrumented? 	must I have been instrumenting?
must you have been instrumenting?
must he have been instrumenting?
must we have been instrumenting?
must you have been instrumenting?
must they have been instrumenting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not instrument?
must you not instrument?
must he not instrument?
must we not instrument?
must you not instrument?
must they not instrument? 	must I not be instrumenting?
must you not be instrumenting?
must he not be instrumenting?
must we not be instrumenting?
must you not be instrumenting?
must they not be instrumenting? 	must I not have instrumented?
must you not have instrumented?
must he not have instrumented?
must we not have instrumented?
must you not have instrumented?
must they not have instrumented? 	must I not have been instrumenting?
must you not have been instrumenting?
must he not have been instrumenting?
must we not have been instrumenting?
must you not have been instrumenting?
must they not have been instrumenting?