must plant
Regular verb: plant - planted- planted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must plant
you must plant
he must plant
we must plant
you must plant
they must plant 	I must be planting
you must be planting
he must be planting
we must be planting
you must be planting
they must be planting	I must have planted
you must have planted
he must have planted
we must have planted
you must have planted
they must have planted	I must have been planting
you must have been planting
he must have been planting
we must have been planting
you must have been planting
they must have been planting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't plant
you mustn't plant
he mustn't plant
we mustn't plant
you mustn't plant
they mustn't plant 	I mustn't be planting
you mustn't be planting
he mustn't be planting
we mustn't be planting
you mustn't be planting
they mustn't be planting	I mustn't have planted
you mustn't have planted
he mustn't have planted
we mustn't have planted
you mustn't have planted
they mustn't have planted	I mustn't have been planting
you mustn't have been planting
he mustn't have been planting
we mustn't have been planting
you mustn't have been planting
they mustn't have been planting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I plant?
must you plant?
must he plant?
must we plant?
must you plant?
must they plant? 	must I be planting?
must you be planting?
must he be planting?
must we be planting?
must you be planting?
must they be planting? 	must I have planted?
must you have planted?
must he have planted?
must we have planted?
must you have planted?
must they have planted? 	must I have been planting?
must you have been planting?
must he have been planting?
must we have been planting?
must you have been planting?
must they have been planting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I plant?
mustn't you plant?
mustn't he plant?
mustn't we plant?
mustn't you plant?
mustn't they plant? 	mustn't I be planting?
mustn't you be planting?
mustn't he be planting?
mustn't we be planting?
mustn't you be planting?
mustn't they be planting? 	mustn't I have planted?
mustn't you have planted?
mustn't he have planted?
mustn't we have planted?
mustn't you have planted?
mustn't they have planted? 	mustn't I have been planting?
mustn't you have been planting?
mustn't he have been planting?
mustn't we have been planting?
mustn't you have been planting?
mustn't they have been planting?