English verb conjugation
MUST HARVEST

Regular verb: harvest - harvested - harvested

Affirmation

Simple form	V-ing form
I must harvest you must harvest he must harvest we must harvest you must harvest they must harvest	I must be harvesting you must be harvesting he must be harvesting we must be harvesting you must be harvesting they must be harvesting
Perfect	V-ing perfect
I must have harvested you must have harvested he must have harvested we must have harvested you must have harvested they must have harvested	I must have been harvesting you must have been harvesting he must have been harvesting we must have been harvesting you must have been harvesting they must have been harvesting

Negation

Simple form	V-ing form
I mustn't harvest you mustn't harvest he mustn't harvest we mustn't harvest you mustn't harvest they mustn't harvest	I mustn't be harvesting you mustn't be harvesting he mustn't be harvesting we mustn't be harvesting you mustn't be harvesting they mustn't be harvesting
Perfect	V-ing perfect
I mustn't have harvested you mustn't have harvested he mustn't have harvested we mustn't have harvested you mustn't have harvested they mustn't have harvested	I mustn't have been harvesting you mustn't have been harvesting he mustn't have been harvesting we mustn't have been harvesting you mustn't have been harvesting they mustn't have been harvesting

Interrogative form

Simple form	V-ing form
must I harvest? must you harvest? must he harvest? must we harvest? must you harvest? must they harvest?	must I be harvesting? must you be harvesting? must he be harvesting? must we be harvesting? must you be harvesting? must they be harvesting?
Perfect	V-ing perfect
must I have harvested? must you have harvested? must he have harvested? must we have harvested? must you have harvested? must they have harvested?	must I have been harvesting? must you have been harvesting? must he have been harvesting? must we have been harvesting? must you have been harvesting? must they have been harvesting?

Interro-negative form

Simple form	V-ing form
mustn't I harvest? mustn't you harvest? mustn't he harvest? mustn't we harvest? mustn't you harvest? mustn't they harvest?	mustn't I be harvesting? mustn't you be harvesting? mustn't he be harvesting? mustn't we be harvesting? mustn't you be harvesting? mustn't they be harvesting?
Perfect	V-ing perfect
mustn't I have harvested? mustn't you have harvested? mustn't he have harvested? mustn't we have harvested? mustn't you have harvested? mustn't they have harvested?	mustn't I have been harvesting? mustn't you have been harvesting? mustn't he have been harvesting? mustn't we have been harvesting? mustn't you have been harvesting? mustn't they have been harvesting?