English verb conjugation
MUST CONSTRUCT

Regular verb: construct - constructed - constructed

Affirmation

Simple form	V-ing form
I must construct you must construct he must construct we must construct you must construct they must construct	I must be constructing you must be constructing he must be constructing we must be constructing you must be constructing they must be constructing
Perfect	V-ing perfect
I must have constructed you must have constructed he must have constructed we must have constructed you must have constructed they must have constructed	I must have been constructing you must have been constructing he must have been constructing we must have been constructing you must have been constructing they must have been constructing

Negation

Simple form	V-ing form
I mustn't construct you mustn't construct he mustn't construct we mustn't construct you mustn't construct they mustn't construct	I mustn't be constructing you mustn't be constructing he mustn't be constructing we mustn't be constructing you mustn't be constructing they mustn't be constructing
Perfect	V-ing perfect
I mustn't have constructed you mustn't have constructed he mustn't have constructed we mustn't have constructed you mustn't have constructed they mustn't have constructed	I mustn't have been constructing you mustn't have been constructing he mustn't have been constructing we mustn't have been constructing you mustn't have been constructing they mustn't have been constructing

Interrogative form

Simple form	V-ing form
must I construct? must you construct? must he construct? must we construct? must you construct? must they construct?	must I be constructing? must you be constructing? must he be constructing? must we be constructing? must you be constructing? must they be constructing?
Perfect	V-ing perfect
must I have constructed? must you have constructed? must he have constructed? must we have constructed? must you have constructed? must they have constructed?	must I have been constructing? must you have been constructing? must he have been constructing? must we have been constructing? must you have been constructing? must they have been constructing?

Interro-negative form

Simple form	V-ing form
mustn't I construct? mustn't you construct? mustn't he construct? mustn't we construct? mustn't you construct? mustn't they construct?	mustn't I be constructing? mustn't you be constructing? mustn't he be constructing? mustn't we be constructing? mustn't you be constructing? mustn't they be constructing?
Perfect	V-ing perfect
mustn't I have constructed? mustn't you have constructed? mustn't he have constructed? mustn't we have constructed? mustn't you have constructed? mustn't they have constructed?	mustn't I have been constructing? mustn't you have been constructing? mustn't he have been constructing? mustn't we have been constructing? mustn't you have been constructing? mustn't they have been constructing?