must adapt
Regular verb: adapt - adapted- adapted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must adapt
you must adapt
she must adapt
we must adapt
you must adapt
they must adapt 	I must be adapting
you must be adapting
she must be adapting
we must be adapting
you must be adapting
they must be adapting	I must have adapted
you must have adapted
she must have adapted
we must have adapted
you must have adapted
they must have adapted	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 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't adapt
you mustn't adapt
she mustn't adapt
we mustn't adapt
you mustn't adapt
they mustn't adapt 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
must I adapt?
must you adapt?
must she adapt?
must we adapt?
must you adapt?
must they adapt? 	must I be adapting?
must you be adapting?
must she be adapting?
must we be adapting?
must you be adapting?
must they be adapting? 	must I have adapted?
must you have adapted?
must she have adapted?
must we have adapted?
must you have adapted?
must they have adapted? 	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 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I adapt?
mustn't you adapt?
mustn't she adapt?
mustn't we adapt?
mustn't you adapt?
mustn't they adapt? 	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? 	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? 	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?