English verb conjugation
MUST PLANT

Regular verb: plant - planted - planted

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?