must truant
Regular verb: truant - truanted- truanted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must truant
you must truant
he must truant
we must truant
you must truant
they must truant 	I must be truanting
you must be truanting
he must be truanting
we must be truanting
you must be truanting
they must be truanting	I must have truanted
you must have truanted
he must have truanted
we must have truanted
you must have truanted
they must have truanted	I must have been truanting
you must have been truanting
he must have been truanting
we must have been truanting
you must have been truanting
they must have been truanting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't truant
you mustn't truant
he mustn't truant
we mustn't truant
you mustn't truant
they mustn't truant 	I mustn't be truanting
you mustn't be truanting
he mustn't be truanting
we mustn't be truanting
you mustn't be truanting
they mustn't be truanting	I mustn't have truanted
you mustn't have truanted
he mustn't have truanted
we mustn't have truanted
you mustn't have truanted
they mustn't have truanted	I mustn't have been truanting
you mustn't have been truanting
he mustn't have been truanting
we mustn't have been truanting
you mustn't have been truanting
they mustn't have been truanting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I truant?
must you truant?
must he truant?
must we truant?
must you truant?
must they truant? 	must I be truanting?
must you be truanting?
must he be truanting?
must we be truanting?
must you be truanting?
must they be truanting? 	must I have truanted?
must you have truanted?
must he have truanted?
must we have truanted?
must you have truanted?
must they have truanted? 	must I have been truanting?
must you have been truanting?
must he have been truanting?
must we have been truanting?
must you have been truanting?
must they have been truanting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I truant?
mustn't you truant?
mustn't he truant?
mustn't we truant?
mustn't you truant?
mustn't they truant? 	mustn't I be truanting?
mustn't you be truanting?
mustn't he be truanting?
mustn't we be truanting?
mustn't you be truanting?
mustn't they be truanting? 	mustn't I have truanted?
mustn't you have truanted?
mustn't he have truanted?
mustn't we have truanted?
mustn't you have truanted?
mustn't they have truanted? 	mustn't I have been truanting?
mustn't you have been truanting?
mustn't he have been truanting?
mustn't we have been truanting?
mustn't you have been truanting?
mustn't they have been truanting?