must negotiate
Regular verb: negotiate - negotiated- negotiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must negotiate
you must negotiate
he must negotiate
we must negotiate
you must negotiate
they must negotiate 	I must be negotiating
you must be negotiating
he must be negotiating
we must be negotiating
you must be negotiating
they must be negotiating	I must have negotiated
you must have negotiated
he must have negotiated
we must have negotiated
you must have negotiated
they must have negotiated	I must have been negotiating
you must have been negotiating
he must have been negotiating
we must have been negotiating
you must have been negotiating
they must have been negotiating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not negotiate
you must not negotiate
he must not negotiate
we must not negotiate
you must not negotiate
they must not negotiate 	I must not be negotiating
you must not be negotiating
he must not be negotiating
we must not be negotiating
you must not be negotiating
they must not be negotiating	I must not have negotiated
you must not have negotiated
he must not have negotiated
we must not have negotiated
you must not have negotiated
they must not have negotiated	I must not have been negotiating
you must not have been negotiating
he must not have been negotiating
we must not have been negotiating
you must not have been negotiating
they must not have been negotiating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I negotiate?
must you negotiate?
must he negotiate?
must we negotiate?
must you negotiate?
must they negotiate? 	must I be negotiating?
must you be negotiating?
must he be negotiating?
must we be negotiating?
must you be negotiating?
must they be negotiating? 	must I have negotiated?
must you have negotiated?
must he have negotiated?
must we have negotiated?
must you have negotiated?
must they have negotiated? 	must I have been negotiating?
must you have been negotiating?
must he have been negotiating?
must we have been negotiating?
must you have been negotiating?
must they have been negotiating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not negotiate?
must you not negotiate?
must he not negotiate?
must we not negotiate?
must you not negotiate?
must they not negotiate? 	must I not be negotiating?
must you not be negotiating?
must he not be negotiating?
must we not be negotiating?
must you not be negotiating?
must they not be negotiating? 	must I not have negotiated?
must you not have negotiated?
must he not have negotiated?
must we not have negotiated?
must you not have negotiated?
must they not have negotiated? 	must I not have been negotiating?
must you not have been negotiating?
must he not have been negotiating?
must we not have been negotiating?
must you not have been negotiating?
must they not have been negotiating?