must lexicalize
Regular verb: lexicalize - lexicalized- lexicalized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must lexicalize
you must lexicalize
he must lexicalize
we must lexicalize
you must lexicalize
they must lexicalize 	I must be lexicalizing
you must be lexicalizing
he must be lexicalizing
we must be lexicalizing
you must be lexicalizing
they must be lexicalizing	I must have lexicalized
you must have lexicalized
he must have lexicalized
we must have lexicalized
you must have lexicalized
they must have lexicalized	I must have been lexicalizing
you must have been lexicalizing
he must have been lexicalizing
we must have been lexicalizing
you must have been lexicalizing
they must have been lexicalizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't lexicalize
you mustn't lexicalize
he mustn't lexicalize
we mustn't lexicalize
you mustn't lexicalize
they mustn't lexicalize 	I mustn't be lexicalizing
you mustn't be lexicalizing
he mustn't be lexicalizing
we mustn't be lexicalizing
you mustn't be lexicalizing
they mustn't be lexicalizing	I mustn't have lexicalized
you mustn't have lexicalized
he mustn't have lexicalized
we mustn't have lexicalized
you mustn't have lexicalized
they mustn't have lexicalized	I mustn't have been lexicalizing
you mustn't have been lexicalizing
he mustn't have been lexicalizing
we mustn't have been lexicalizing
you mustn't have been lexicalizing
they mustn't have been lexicalizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I lexicalize?
must you lexicalize?
must he lexicalize?
must we lexicalize?
must you lexicalize?
must they lexicalize? 	must I be lexicalizing?
must you be lexicalizing?
must he be lexicalizing?
must we be lexicalizing?
must you be lexicalizing?
must they be lexicalizing? 	must I have lexicalized?
must you have lexicalized?
must he have lexicalized?
must we have lexicalized?
must you have lexicalized?
must they have lexicalized? 	must I have been lexicalizing?
must you have been lexicalizing?
must he have been lexicalizing?
must we have been lexicalizing?
must you have been lexicalizing?
must they have been lexicalizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I lexicalize?
mustn't you lexicalize?
mustn't he lexicalize?
mustn't we lexicalize?
mustn't you lexicalize?
mustn't they lexicalize? 	mustn't I be lexicalizing?
mustn't you be lexicalizing?
mustn't he be lexicalizing?
mustn't we be lexicalizing?
mustn't you be lexicalizing?
mustn't they be lexicalizing? 	mustn't I have lexicalized?
mustn't you have lexicalized?
mustn't he have lexicalized?
mustn't we have lexicalized?
mustn't you have lexicalized?
mustn't they have lexicalized? 	mustn't I have been lexicalizing?
mustn't you have been lexicalizing?
mustn't he have been lexicalizing?
mustn't we have been lexicalizing?
mustn't you have been lexicalizing?
mustn't they have been lexicalizing?