English verb conjugation
MUST UNFIX

Regular verb: unfix - unfixed - unfixed

Affirmation

Simple form	V-ing form
I must unfix you must unfix he must unfix we must unfix you must unfix they must unfix	I must be unfixing you must be unfixing he must be unfixing we must be unfixing you must be unfixing they must be unfixing
Perfect	V-ing perfect
I must have unfixed you must have unfixed he must have unfixed we must have unfixed you must have unfixed they must have unfixed	I must have been unfixing you must have been unfixing he must have been unfixing we must have been unfixing you must have been unfixing they must have been unfixing

Negation

Simple form	V-ing form
I mustn't unfix you mustn't unfix he mustn't unfix we mustn't unfix you mustn't unfix they mustn't unfix	I mustn't be unfixing you mustn't be unfixing he mustn't be unfixing we mustn't be unfixing you mustn't be unfixing they mustn't be unfixing
Perfect	V-ing perfect
I mustn't have unfixed you mustn't have unfixed he mustn't have unfixed we mustn't have unfixed you mustn't have unfixed they mustn't have unfixed	I mustn't have been unfixing you mustn't have been unfixing he mustn't have been unfixing we mustn't have been unfixing you mustn't have been unfixing they mustn't have been unfixing

Interrogative form

Simple form	V-ing form
must I unfix? must you unfix? must he unfix? must we unfix? must you unfix? must they unfix?	must I be unfixing? must you be unfixing? must he be unfixing? must we be unfixing? must you be unfixing? must they be unfixing?
Perfect	V-ing perfect
must I have unfixed? must you have unfixed? must he have unfixed? must we have unfixed? must you have unfixed? must they have unfixed?	must I have been unfixing? must you have been unfixing? must he have been unfixing? must we have been unfixing? must you have been unfixing? must they have been unfixing?

Interro-negative form

Simple form	V-ing form
mustn't I unfix? mustn't you unfix? mustn't he unfix? mustn't we unfix? mustn't you unfix? mustn't they unfix?	mustn't I be unfixing? mustn't you be unfixing? mustn't he be unfixing? mustn't we be unfixing? mustn't you be unfixing? mustn't they be unfixing?
Perfect	V-ing perfect
mustn't I have unfixed? mustn't you have unfixed? mustn't he have unfixed? mustn't we have unfixed? mustn't you have unfixed? mustn't they have unfixed?	mustn't I have been unfixing? mustn't you have been unfixing? mustn't he have been unfixing? mustn't we have been unfixing? mustn't you have been unfixing? mustn't they have been unfixing?