English verb conjugation
MUST UNSTOP

Regular verb: unstop - unstopped - unstopped

Affirmation

Simple form	V-ing form
I must unstop you must unstop he must unstop we must unstop you must unstop they must unstop	I must be unstopping you must be unstopping he must be unstopping we must be unstopping you must be unstopping they must be unstopping
Perfect	V-ing perfect
I must have unstopped you must have unstopped he must have unstopped we must have unstopped you must have unstopped they must have unstopped	I must have been unstopping you must have been unstopping he must have been unstopping we must have been unstopping you must have been unstopping they must have been unstopping

Negation

Simple form	V-ing form
I mustn't unstop you mustn't unstop he mustn't unstop we mustn't unstop you mustn't unstop they mustn't unstop	I mustn't be unstopping you mustn't be unstopping he mustn't be unstopping we mustn't be unstopping you mustn't be unstopping they mustn't be unstopping
Perfect	V-ing perfect
I mustn't have unstopped you mustn't have unstopped he mustn't have unstopped we mustn't have unstopped you mustn't have unstopped they mustn't have unstopped	I mustn't have been unstopping you mustn't have been unstopping he mustn't have been unstopping we mustn't have been unstopping you mustn't have been unstopping they mustn't have been unstopping

Interrogative form

Simple form	V-ing form
must I unstop? must you unstop? must he unstop? must we unstop? must you unstop? must they unstop?	must I be unstopping? must you be unstopping? must he be unstopping? must we be unstopping? must you be unstopping? must they be unstopping?
Perfect	V-ing perfect
must I have unstopped? must you have unstopped? must he have unstopped? must we have unstopped? must you have unstopped? must they have unstopped?	must I have been unstopping? must you have been unstopping? must he have been unstopping? must we have been unstopping? must you have been unstopping? must they have been unstopping?

Interro-negative form

Simple form	V-ing form
mustn't I unstop? mustn't you unstop? mustn't he unstop? mustn't we unstop? mustn't you unstop? mustn't they unstop?	mustn't I be unstopping? mustn't you be unstopping? mustn't he be unstopping? mustn't we be unstopping? mustn't you be unstopping? mustn't they be unstopping?
Perfect	V-ing perfect
mustn't I have unstopped? mustn't you have unstopped? mustn't he have unstopped? mustn't we have unstopped? mustn't you have unstopped? mustn't they have unstopped?	mustn't I have been unstopping? mustn't you have been unstopping? mustn't he have been unstopping? mustn't we have been unstopping? mustn't you have been unstopping? mustn't they have been unstopping?