must threat
Regular verb: threat - threated- threated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must threat
you must threat
he must threat
we must threat
you must threat
they must threat 	I must be threating
you must be threating
he must be threating
we must be threating
you must be threating
they must be threating	I must have threated
you must have threated
he must have threated
we must have threated
you must have threated
they must have threated	I must have been threating
you must have been threating
he must have been threating
we must have been threating
you must have been threating
they must have been threating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not threat
you must not threat
he must not threat
we must not threat
you must not threat
they must not threat 	I must not be threating
you must not be threating
he must not be threating
we must not be threating
you must not be threating
they must not be threating	I must not have threated
you must not have threated
he must not have threated
we must not have threated
you must not have threated
they must not have threated	I must not have been threating
you must not have been threating
he must not have been threating
we must not have been threating
you must not have been threating
they must not have been threating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I threat?
must you threat?
must he threat?
must we threat?
must you threat?
must they threat? 	must I be threating?
must you be threating?
must he be threating?
must we be threating?
must you be threating?
must they be threating? 	must I have threated?
must you have threated?
must he have threated?
must we have threated?
must you have threated?
must they have threated? 	must I have been threating?
must you have been threating?
must he have been threating?
must we have been threating?
must you have been threating?
must they have been threating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not threat?
must you not threat?
must he not threat?
must we not threat?
must you not threat?
must they not threat? 	must I not be threating?
must you not be threating?
must he not be threating?
must we not be threating?
must you not be threating?
must they not be threating? 	must I not have threated?
must you not have threated?
must he not have threated?
must we not have threated?
must you not have threated?
must they not have threated? 	must I not have been threating?
must you not have been threating?
must he not have been threating?
must we not have been threating?
must you not have been threating?
must they not have been threating?