English verb conjugation
MUST SUBDIVIDE

Regular verb: subdivide - subdivided - subdivided

Affirmation

Simple form	V-ing form
I must subdivide you must subdivide she must subdivide we must subdivide you must subdivide they must subdivide	I must be subdividing you must be subdividing she must be subdividing we must be subdividing you must be subdividing they must be subdividing
Perfect	V-ing perfect
I must have subdivided you must have subdivided she must have subdivided we must have subdivided you must have subdivided they must have subdivided	I must have been subdividing you must have been subdividing she must have been subdividing we must have been subdividing you must have been subdividing they must have been subdividing

Negation

Simple form	V-ing form
I mustn't subdivide you mustn't subdivide she mustn't subdivide we mustn't subdivide you mustn't subdivide they mustn't subdivide	I mustn't be subdividing you mustn't be subdividing she mustn't be subdividing we mustn't be subdividing you mustn't be subdividing they mustn't be subdividing
Perfect	V-ing perfect
I mustn't have subdivided you mustn't have subdivided she mustn't have subdivided we mustn't have subdivided you mustn't have subdivided they mustn't have subdivided	I mustn't have been subdividing you mustn't have been subdividing she mustn't have been subdividing we mustn't have been subdividing you mustn't have been subdividing they mustn't have been subdividing

Interrogative form

Simple form	V-ing form
must I subdivide? must you subdivide? must she subdivide? must we subdivide? must you subdivide? must they subdivide?	must I be subdividing? must you be subdividing? must she be subdividing? must we be subdividing? must you be subdividing? must they be subdividing?
Perfect	V-ing perfect
must I have subdivided? must you have subdivided? must she have subdivided? must we have subdivided? must you have subdivided? must they have subdivided?	must I have been subdividing? must you have been subdividing? must she have been subdividing? must we have been subdividing? must you have been subdividing? must they have been subdividing?

Interro-negative form

Simple form	V-ing form
mustn't I subdivide? mustn't you subdivide? mustn't she subdivide? mustn't we subdivide? mustn't you subdivide? mustn't they subdivide?	mustn't I be subdividing? mustn't you be subdividing? mustn't she be subdividing? mustn't we be subdividing? mustn't you be subdividing? mustn't they be subdividing?
Perfect	V-ing perfect
mustn't I have subdivided? mustn't you have subdivided? mustn't she have subdivided? mustn't we have subdivided? mustn't you have subdivided? mustn't they have subdivided?	mustn't I have been subdividing? mustn't you have been subdividing? mustn't she have been subdividing? mustn't we have been subdividing? mustn't you have been subdividing? mustn't they have been subdividing?