English verb conjugation
MUST UNFREEZE

Regular verb: unfreeze - unfreezed - unfreezed

Affirmation

Simple form	V-ing form
I must unfreeze you must unfreeze he must unfreeze we must unfreeze you must unfreeze they must unfreeze	I must be unfreezing you must be unfreezing he must be unfreezing we must be unfreezing you must be unfreezing they must be unfreezing
Perfect	V-ing perfect
I must have unfreezed you must have unfreezed he must have unfreezed we must have unfreezed you must have unfreezed they must have unfreezed	I must have been unfreezing you must have been unfreezing he must have been unfreezing we must have been unfreezing you must have been unfreezing they must have been unfreezing

Negation

Simple form	V-ing form
I mustn't unfreeze you mustn't unfreeze he mustn't unfreeze we mustn't unfreeze you mustn't unfreeze they mustn't unfreeze	I mustn't be unfreezing you mustn't be unfreezing he mustn't be unfreezing we mustn't be unfreezing you mustn't be unfreezing they mustn't be unfreezing
Perfect	V-ing perfect
I mustn't have unfreezed you mustn't have unfreezed he mustn't have unfreezed we mustn't have unfreezed you mustn't have unfreezed they mustn't have unfreezed	I mustn't have been unfreezing you mustn't have been unfreezing he mustn't have been unfreezing we mustn't have been unfreezing you mustn't have been unfreezing they mustn't have been unfreezing

Interrogative form

Simple form	V-ing form
must I unfreeze? must you unfreeze? must he unfreeze? must we unfreeze? must you unfreeze? must they unfreeze?	must I be unfreezing? must you be unfreezing? must he be unfreezing? must we be unfreezing? must you be unfreezing? must they be unfreezing?
Perfect	V-ing perfect
must I have unfreezed? must you have unfreezed? must he have unfreezed? must we have unfreezed? must you have unfreezed? must they have unfreezed?	must I have been unfreezing? must you have been unfreezing? must he have been unfreezing? must we have been unfreezing? must you have been unfreezing? must they have been unfreezing?

Interro-negative form

Simple form	V-ing form
mustn't I unfreeze? mustn't you unfreeze? mustn't he unfreeze? mustn't we unfreeze? mustn't you unfreeze? mustn't they unfreeze?	mustn't I be unfreezing? mustn't you be unfreezing? mustn't he be unfreezing? mustn't we be unfreezing? mustn't you be unfreezing? mustn't they be unfreezing?
Perfect	V-ing perfect
mustn't I have unfreezed? mustn't you have unfreezed? mustn't he have unfreezed? mustn't we have unfreezed? mustn't you have unfreezed? mustn't they have unfreezed?	mustn't I have been unfreezing? mustn't you have been unfreezing? mustn't he have been unfreezing? mustn't we have been unfreezing? mustn't you have been unfreezing? mustn't they have been unfreezing?