English verb conjugation
MUST THREAT

Regular verb: threat - threated - threated

Affirmation

Simple form	V-ing form
I must threat you must threat she must threat we must threat you must threat they must threat	I must be threating you must be threating she must be threating we must be threating you must be threating they must be threating
Perfect	V-ing perfect
I must have threated you must have threated she 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 she 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
I mustn't threat you mustn't threat she mustn't threat we mustn't threat you mustn't threat they mustn't threat	I mustn't be threating you mustn't be threating she mustn't be threating we mustn't be threating you mustn't be threating they mustn't be threating
Perfect	V-ing perfect
I mustn't have threated you mustn't have threated she mustn't have threated we mustn't have threated you mustn't have threated they mustn't have threated	I mustn't have been threating you mustn't have been threating she mustn't have been threating we mustn't have been threating you mustn't have been threating they mustn't have been threating

Interrogative form

Simple form	V-ing form
must I threat? must you threat? must she threat? must we threat? must you threat? must they threat?	must I be threating? must you be threating? must she be threating? must we be threating? must you be threating? must they be threating?
Perfect	V-ing perfect
must I have threated? must you have threated? must she 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 she 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
mustn't I threat? mustn't you threat? mustn't she threat? mustn't we threat? mustn't you threat? mustn't they threat?	mustn't I be threating? mustn't you be threating? mustn't she be threating? mustn't we be threating? mustn't you be threating? mustn't they be threating?
Perfect	V-ing perfect
mustn't I have threated? mustn't you have threated? mustn't she have threated? mustn't we have threated? mustn't you have threated? mustn't they have threated?	mustn't I have been threating? mustn't you have been threating? mustn't she have been threating? mustn't we have been threating? mustn't you have been threating? mustn't they have been threating?