must flourish
Regular verb: flourish - flourished- flourished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must flourish
you must flourish
he must flourish
we must flourish
you must flourish
they must flourish 	I must be flourishing
you must be flourishing
he must be flourishing
we must be flourishing
you must be flourishing
they must be flourishing	I must have flourished
you must have flourished
he must have flourished
we must have flourished
you must have flourished
they must have flourished	I must have been flourishing
you must have been flourishing
he must have been flourishing
we must have been flourishing
you must have been flourishing
they must have been flourishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't flourish
you mustn't flourish
he mustn't flourish
we mustn't flourish
you mustn't flourish
they mustn't flourish 	I mustn't be flourishing
you mustn't be flourishing
he mustn't be flourishing
we mustn't be flourishing
you mustn't be flourishing
they mustn't be flourishing	I mustn't have flourished
you mustn't have flourished
he mustn't have flourished
we mustn't have flourished
you mustn't have flourished
they mustn't have flourished	I mustn't have been flourishing
you mustn't have been flourishing
he mustn't have been flourishing
we mustn't have been flourishing
you mustn't have been flourishing
they mustn't have been flourishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I flourish?
must you flourish?
must he flourish?
must we flourish?
must you flourish?
must they flourish? 	must I be flourishing?
must you be flourishing?
must he be flourishing?
must we be flourishing?
must you be flourishing?
must they be flourishing? 	must I have flourished?
must you have flourished?
must he have flourished?
must we have flourished?
must you have flourished?
must they have flourished? 	must I have been flourishing?
must you have been flourishing?
must he have been flourishing?
must we have been flourishing?
must you have been flourishing?
must they have been flourishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I flourish?
mustn't you flourish?
mustn't he flourish?
mustn't we flourish?
mustn't you flourish?
mustn't they flourish? 	mustn't I be flourishing?
mustn't you be flourishing?
mustn't he be flourishing?
mustn't we be flourishing?
mustn't you be flourishing?
mustn't they be flourishing? 	mustn't I have flourished?
mustn't you have flourished?
mustn't he have flourished?
mustn't we have flourished?
mustn't you have flourished?
mustn't they have flourished? 	mustn't I have been flourishing?
mustn't you have been flourishing?
mustn't he have been flourishing?
mustn't we have been flourishing?
mustn't you have been flourishing?
mustn't they have been flourishing?