English verb conjugation
MUST UNTRUSS

Regular verb: untruss - untrussed - untrussed

Affirmation

Simple form	V-ing form
I must untruss you must untruss he must untruss we must untruss you must untruss they must untruss	I must be untrussing you must be untrussing he must be untrussing we must be untrussing you must be untrussing they must be untrussing
Perfect	V-ing perfect
I must have untrussed you must have untrussed he must have untrussed we must have untrussed you must have untrussed they must have untrussed	I must have been untrussing you must have been untrussing he must have been untrussing we must have been untrussing you must have been untrussing they must have been untrussing

Negation

Simple form	V-ing form
I must not untruss you must not untruss he must not untruss we must not untruss you must not untruss they must not untruss	I must not be untrussing you must not be untrussing he must not be untrussing we must not be untrussing you must not be untrussing they must not be untrussing
Perfect	V-ing perfect
I must not have untrussed you must not have untrussed he must not have untrussed we must not have untrussed you must not have untrussed they must not have untrussed	I must not have been untrussing you must not have been untrussing he must not have been untrussing we must not have been untrussing you must not have been untrussing they must not have been untrussing

Interrogative form

Simple form	V-ing form
must I untruss? must you untruss? must he untruss? must we untruss? must you untruss? must they untruss?	must I be untrussing? must you be untrussing? must he be untrussing? must we be untrussing? must you be untrussing? must they be untrussing?
Perfect	V-ing perfect
must I have untrussed? must you have untrussed? must he have untrussed? must we have untrussed? must you have untrussed? must they have untrussed?	must I have been untrussing? must you have been untrussing? must he have been untrussing? must we have been untrussing? must you have been untrussing? must they have been untrussing?

Interro-negative form

Simple form	V-ing form
must I not untruss? must you not untruss? must he not untruss? must we not untruss? must you not untruss? must they not untruss?	must I not be untrussing? must you not be untrussing? must he not be untrussing? must we not be untrussing? must you not be untrussing? must they not be untrussing?
Perfect	V-ing perfect
must I not have untrussed? must you not have untrussed? must he not have untrussed? must we not have untrussed? must you not have untrussed? must they not have untrussed?	must I not have been untrussing? must you not have been untrussing? must he not have been untrussing? must we not have been untrussing? must you not have been untrussing? must they not have been untrussing?