must troll
Regular verb: troll - trolled- trolled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must troll
you must troll
she must troll
we must troll
you must troll
they must troll 	I must be trolling
you must be trolling
she must be trolling
we must be trolling
you must be trolling
they must be trolling	I must have trolled
you must have trolled
she must have trolled
we must have trolled
you must have trolled
they must have trolled	I must have been trolling
you must have been trolling
she must have been trolling
we must have been trolling
you must have been trolling
they must have been trolling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't troll
you mustn't troll
she mustn't troll
we mustn't troll
you mustn't troll
they mustn't troll 	I mustn't be trolling
you mustn't be trolling
she mustn't be trolling
we mustn't be trolling
you mustn't be trolling
they mustn't be trolling	I mustn't have trolled
you mustn't have trolled
she mustn't have trolled
we mustn't have trolled
you mustn't have trolled
they mustn't have trolled	I mustn't have been trolling
you mustn't have been trolling
she mustn't have been trolling
we mustn't have been trolling
you mustn't have been trolling
they mustn't have been trolling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I troll?
must you troll?
must she troll?
must we troll?
must you troll?
must they troll? 	must I be trolling?
must you be trolling?
must she be trolling?
must we be trolling?
must you be trolling?
must they be trolling? 	must I have trolled?
must you have trolled?
must she have trolled?
must we have trolled?
must you have trolled?
must they have trolled? 	must I have been trolling?
must you have been trolling?
must she have been trolling?
must we have been trolling?
must you have been trolling?
must they have been trolling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I troll?
mustn't you troll?
mustn't she troll?
mustn't we troll?
mustn't you troll?
mustn't they troll? 	mustn't I be trolling?
mustn't you be trolling?
mustn't she be trolling?
mustn't we be trolling?
mustn't you be trolling?
mustn't they be trolling? 	mustn't I have trolled?
mustn't you have trolled?
mustn't she have trolled?
mustn't we have trolled?
mustn't you have trolled?
mustn't they have trolled? 	mustn't I have been trolling?
mustn't you have been trolling?
mustn't she have been trolling?
mustn't we have been trolling?
mustn't you have been trolling?
mustn't they have been trolling?