must hyphenate
Regular verb: hyphenate - hyphenated- hyphenated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must hyphenate
you must hyphenate
she must hyphenate
we must hyphenate
you must hyphenate
they must hyphenate 	I must be hyphenating
you must be hyphenating
she must be hyphenating
we must be hyphenating
you must be hyphenating
they must be hyphenating	I must have hyphenated
you must have hyphenated
she must have hyphenated
we must have hyphenated
you must have hyphenated
they must have hyphenated	I must have been hyphenating
you must have been hyphenating
she must have been hyphenating
we must have been hyphenating
you must have been hyphenating
they must have been hyphenating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't hyphenate
you mustn't hyphenate
she mustn't hyphenate
we mustn't hyphenate
you mustn't hyphenate
they mustn't hyphenate 	I mustn't be hyphenating
you mustn't be hyphenating
she mustn't be hyphenating
we mustn't be hyphenating
you mustn't be hyphenating
they mustn't be hyphenating	I mustn't have hyphenated
you mustn't have hyphenated
she mustn't have hyphenated
we mustn't have hyphenated
you mustn't have hyphenated
they mustn't have hyphenated	I mustn't have been hyphenating
you mustn't have been hyphenating
she mustn't have been hyphenating
we mustn't have been hyphenating
you mustn't have been hyphenating
they mustn't have been hyphenating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I hyphenate?
must you hyphenate?
must she hyphenate?
must we hyphenate?
must you hyphenate?
must they hyphenate? 	must I be hyphenating?
must you be hyphenating?
must she be hyphenating?
must we be hyphenating?
must you be hyphenating?
must they be hyphenating? 	must I have hyphenated?
must you have hyphenated?
must she have hyphenated?
must we have hyphenated?
must you have hyphenated?
must they have hyphenated? 	must I have been hyphenating?
must you have been hyphenating?
must she have been hyphenating?
must we have been hyphenating?
must you have been hyphenating?
must they have been hyphenating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I hyphenate?
mustn't you hyphenate?
mustn't she hyphenate?
mustn't we hyphenate?
mustn't you hyphenate?
mustn't they hyphenate? 	mustn't I be hyphenating?
mustn't you be hyphenating?
mustn't she be hyphenating?
mustn't we be hyphenating?
mustn't you be hyphenating?
mustn't they be hyphenating? 	mustn't I have hyphenated?
mustn't you have hyphenated?
mustn't she have hyphenated?
mustn't we have hyphenated?
mustn't you have hyphenated?
mustn't they have hyphenated? 	mustn't I have been hyphenating?
mustn't you have been hyphenating?
mustn't she have been hyphenating?
mustn't we have been hyphenating?
mustn't you have been hyphenating?
mustn't they have been hyphenating?