I must adapt you must adapt she must adapt we must adapt you must adapt they must adapt
V-ing form
I must be adapting you must be adapting she must be adapting we must be adapting you must be adapting they must be adapting
Perfect
I must have adapted you must have adapted she must have adapted we must have adapted you must have adapted they must have adapted
V-ing perfect
I must have been adapting you must have been adapting she must have been adapting we must have been adapting you must have been adapting they must have been adapting
Negation
Simple form
I mustn't adapt you mustn't adapt she mustn't adapt we mustn't adapt you mustn't adapt they mustn't adapt
V-ing form
I mustn't be adapting you mustn't be adapting she mustn't be adapting we mustn't be adapting you mustn't be adapting they mustn't be adapting
Perfect
I mustn't have adapted you mustn't have adapted she mustn't have adapted we mustn't have adapted you mustn't have adapted they mustn't have adapted
V-ing perfect
I mustn't have been adapting you mustn't have been adapting she mustn't have been adapting we mustn't have been adapting you mustn't have been adapting they mustn't have been adapting
Interrogative form
Simple form
must I adapt? must you adapt? must she adapt? must we adapt? must you adapt? must they adapt?
V-ing form
must I be adapting? must you be adapting? must she be adapting? must we be adapting? must you be adapting? must they be adapting?
Perfect
must I have adapted? must you have adapted? must she have adapted? must we have adapted? must you have adapted? must they have adapted?
V-ing perfect
must I have been adapting? must you have been adapting? must she have been adapting? must we have been adapting? must you have been adapting? must they have been adapting?
Interro-negative form
Simple form
mustn't I adapt? mustn't you adapt? mustn't she adapt? mustn't we adapt? mustn't you adapt? mustn't they adapt?
V-ing form
mustn't I be adapting? mustn't you be adapting? mustn't she be adapting? mustn't we be adapting? mustn't you be adapting? mustn't they be adapting?
Perfect
mustn't I have adapted? mustn't you have adapted? mustn't she have adapted? mustn't we have adapted? mustn't you have adapted? mustn't they have adapted?
V-ing perfect
mustn't I have been adapting? mustn't you have been adapting? mustn't she have been adapting? mustn't we have been adapting? mustn't you have been adapting? mustn't they have been adapting?