English verb conjugation
MUST QUALIFY

Regular verb: qualify - qualified - qualified

Affirmation

Simple form	V-ing form
I must qualify you must qualify he must qualify we must qualify you must qualify they must qualify	I must be qualifying you must be qualifying he must be qualifying we must be qualifying you must be qualifying they must be qualifying
Perfect	V-ing perfect
I must have qualified you must have qualified he must have qualified we must have qualified you must have qualified they must have qualified	I must have been qualifying you must have been qualifying he must have been qualifying we must have been qualifying you must have been qualifying they must have been qualifying

Negation

Simple form	V-ing form
I mustn't qualify you mustn't qualify he mustn't qualify we mustn't qualify you mustn't qualify they mustn't qualify	I mustn't be qualifying you mustn't be qualifying he mustn't be qualifying we mustn't be qualifying you mustn't be qualifying they mustn't be qualifying
Perfect	V-ing perfect
I mustn't have qualified you mustn't have qualified he mustn't have qualified we mustn't have qualified you mustn't have qualified they mustn't have qualified	I mustn't have been qualifying you mustn't have been qualifying he mustn't have been qualifying we mustn't have been qualifying you mustn't have been qualifying they mustn't have been qualifying

Interrogative form

Simple form	V-ing form
must I qualify? must you qualify? must he qualify? must we qualify? must you qualify? must they qualify?	must I be qualifying? must you be qualifying? must he be qualifying? must we be qualifying? must you be qualifying? must they be qualifying?
Perfect	V-ing perfect
must I have qualified? must you have qualified? must he have qualified? must we have qualified? must you have qualified? must they have qualified?	must I have been qualifying? must you have been qualifying? must he have been qualifying? must we have been qualifying? must you have been qualifying? must they have been qualifying?

Interro-negative form

Simple form	V-ing form
mustn't I qualify? mustn't you qualify? mustn't he qualify? mustn't we qualify? mustn't you qualify? mustn't they qualify?	mustn't I be qualifying? mustn't you be qualifying? mustn't he be qualifying? mustn't we be qualifying? mustn't you be qualifying? mustn't they be qualifying?
Perfect	V-ing perfect
mustn't I have qualified? mustn't you have qualified? mustn't he have qualified? mustn't we have qualified? mustn't you have qualified? mustn't they have qualified?	mustn't I have been qualifying? mustn't you have been qualifying? mustn't he have been qualifying? mustn't we have been qualifying? mustn't you have been qualifying? mustn't they have been qualifying?