must harbinger
Regular verb: harbinger - harbingered- harbingered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must harbinger
you must harbinger
he must harbinger
we must harbinger
you must harbinger
they must harbinger 	I must be harbingering
you must be harbingering
he must be harbingering
we must be harbingering
you must be harbingering
they must be harbingering	I must have harbingered
you must have harbingered
he must have harbingered
we must have harbingered
you must have harbingered
they must have harbingered	I must have been harbingering
you must have been harbingering
he must have been harbingering
we must have been harbingering
you must have been harbingering
they must have been harbingering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not harbinger
you must not harbinger
he must not harbinger
we must not harbinger
you must not harbinger
they must not harbinger 	I must not be harbingering
you must not be harbingering
he must not be harbingering
we must not be harbingering
you must not be harbingering
they must not be harbingering	I must not have harbingered
you must not have harbingered
he must not have harbingered
we must not have harbingered
you must not have harbingered
they must not have harbingered	I must not have been harbingering
you must not have been harbingering
he must not have been harbingering
we must not have been harbingering
you must not have been harbingering
they must not have been harbingering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I harbinger?
must you harbinger?
must he harbinger?
must we harbinger?
must you harbinger?
must they harbinger? 	must I be harbingering?
must you be harbingering?
must he be harbingering?
must we be harbingering?
must you be harbingering?
must they be harbingering? 	must I have harbingered?
must you have harbingered?
must he have harbingered?
must we have harbingered?
must you have harbingered?
must they have harbingered? 	must I have been harbingering?
must you have been harbingering?
must he have been harbingering?
must we have been harbingering?
must you have been harbingering?
must they have been harbingering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not harbinger?
must you not harbinger?
must he not harbinger?
must we not harbinger?
must you not harbinger?
must they not harbinger? 	must I not be harbingering?
must you not be harbingering?
must he not be harbingering?
must we not be harbingering?
must you not be harbingering?
must they not be harbingering? 	must I not have harbingered?
must you not have harbingered?
must he not have harbingered?
must we not have harbingered?
must you not have harbingered?
must they not have harbingered? 	must I not have been harbingering?
must you not have been harbingering?
must he not have been harbingering?
must we not have been harbingering?
must you not have been harbingering?
must they not have been harbingering?