English verb conjugation
MUST AIRLIFT

Regular verb: airlift - airlifted - airlifted

Affirmation

Simple form	V-ing form
I must airlift you must airlift he must airlift we must airlift you must airlift they must airlift	I must be airlifting you must be airlifting he must be airlifting we must be airlifting you must be airlifting they must be airlifting
Perfect	V-ing perfect
I must have airlifted you must have airlifted he must have airlifted we must have airlifted you must have airlifted they must have airlifted	I must have been airlifting you must have been airlifting he must have been airlifting we must have been airlifting you must have been airlifting they must have been airlifting

Negation

Simple form	V-ing form
I mustn't airlift you mustn't airlift he mustn't airlift we mustn't airlift you mustn't airlift they mustn't airlift	I mustn't be airlifting you mustn't be airlifting he mustn't be airlifting we mustn't be airlifting you mustn't be airlifting they mustn't be airlifting
Perfect	V-ing perfect
I mustn't have airlifted you mustn't have airlifted he mustn't have airlifted we mustn't have airlifted you mustn't have airlifted they mustn't have airlifted	I mustn't have been airlifting you mustn't have been airlifting he mustn't have been airlifting we mustn't have been airlifting you mustn't have been airlifting they mustn't have been airlifting

Interrogative form

Simple form	V-ing form
must I airlift? must you airlift? must he airlift? must we airlift? must you airlift? must they airlift?	must I be airlifting? must you be airlifting? must he be airlifting? must we be airlifting? must you be airlifting? must they be airlifting?
Perfect	V-ing perfect
must I have airlifted? must you have airlifted? must he have airlifted? must we have airlifted? must you have airlifted? must they have airlifted?	must I have been airlifting? must you have been airlifting? must he have been airlifting? must we have been airlifting? must you have been airlifting? must they have been airlifting?

Interro-negative form

Simple form	V-ing form
mustn't I airlift? mustn't you airlift? mustn't he airlift? mustn't we airlift? mustn't you airlift? mustn't they airlift?	mustn't I be airlifting? mustn't you be airlifting? mustn't he be airlifting? mustn't we be airlifting? mustn't you be airlifting? mustn't they be airlifting?
Perfect	V-ing perfect
mustn't I have airlifted? mustn't you have airlifted? mustn't he have airlifted? mustn't we have airlifted? mustn't you have airlifted? mustn't they have airlifted?	mustn't I have been airlifting? mustn't you have been airlifting? mustn't he have been airlifting? mustn't we have been airlifting? mustn't you have been airlifting? mustn't they have been airlifting?