must plait
Regular verb: plait - plaited- plaited

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must plait
you must plait
she must plait
we must plait
you must plait
they must plait 	I must be plaiting
you must be plaiting
she must be plaiting
we must be plaiting
you must be plaiting
they must be plaiting	I must have plaited
you must have plaited
she must have plaited
we must have plaited
you must have plaited
they must have plaited	I must have been plaiting
you must have been plaiting
she must have been plaiting
we must have been plaiting
you must have been plaiting
they must have been plaiting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't plait
you mustn't plait
she mustn't plait
we mustn't plait
you mustn't plait
they mustn't plait 	I mustn't be plaiting
you mustn't be plaiting
she mustn't be plaiting
we mustn't be plaiting
you mustn't be plaiting
they mustn't be plaiting	I mustn't have plaited
you mustn't have plaited
she mustn't have plaited
we mustn't have plaited
you mustn't have plaited
they mustn't have plaited	I mustn't have been plaiting
you mustn't have been plaiting
she mustn't have been plaiting
we mustn't have been plaiting
you mustn't have been plaiting
they mustn't have been plaiting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I plait?
must you plait?
must she plait?
must we plait?
must you plait?
must they plait? 	must I be plaiting?
must you be plaiting?
must she be plaiting?
must we be plaiting?
must you be plaiting?
must they be plaiting? 	must I have plaited?
must you have plaited?
must she have plaited?
must we have plaited?
must you have plaited?
must they have plaited? 	must I have been plaiting?
must you have been plaiting?
must she have been plaiting?
must we have been plaiting?
must you have been plaiting?
must they have been plaiting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I plait?
mustn't you plait?
mustn't she plait?
mustn't we plait?
mustn't you plait?
mustn't they plait? 	mustn't I be plaiting?
mustn't you be plaiting?
mustn't she be plaiting?
mustn't we be plaiting?
mustn't you be plaiting?
mustn't they be plaiting? 	mustn't I have plaited?
mustn't you have plaited?
mustn't she have plaited?
mustn't we have plaited?
mustn't you have plaited?
mustn't they have plaited? 	mustn't I have been plaiting?
mustn't you have been plaiting?
mustn't she have been plaiting?
mustn't we have been plaiting?
mustn't you have been plaiting?
mustn't they have been plaiting?