English verb conjugation
MUST EXERT USE

Regular verb: exert use - exert used - exert used

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must exert use you must exert use she must exert use we must exert use you must exert use they must exert use	I must be exert using you must be exert using she must be exert using we must be exert using you must be exert using they must be exert using
Perfect	V-ing perfect
I must have exert used you must have exert used she must have exert used we must have exert used you must have exert used they must have exert used	I must have been exert using you must have been exert using she must have been exert using we must have been exert using you must have been exert using they must have been exert using

Negation

Simple form	V-ing form
I mustn't exert use you mustn't exert use she mustn't exert use we mustn't exert use you mustn't exert use they mustn't exert use	I mustn't be exert using you mustn't be exert using she mustn't be exert using we mustn't be exert using you mustn't be exert using they mustn't be exert using
Perfect	V-ing perfect
I mustn't have exert used you mustn't have exert used she mustn't have exert used we mustn't have exert used you mustn't have exert used they mustn't have exert used	I mustn't have been exert using you mustn't have been exert using she mustn't have been exert using we mustn't have been exert using you mustn't have been exert using they mustn't have been exert using

Interrogative form

Simple form	V-ing form
must I exert use? must you exert use? must she exert use? must we exert use? must you exert use? must they exert use?	must I be exert using? must you be exert using? must she be exert using? must we be exert using? must you be exert using? must they be exert using?
Perfect	V-ing perfect
must I have exert used? must you have exert used? must she have exert used? must we have exert used? must you have exert used? must they have exert used?	must I have been exert using? must you have been exert using? must she have been exert using? must we have been exert using? must you have been exert using? must they have been exert using?

Interro-negative form

Simple form	V-ing form
mustn't I exert use? mustn't you exert use? mustn't she exert use? mustn't we exert use? mustn't you exert use? mustn't they exert use?	mustn't I be exert using? mustn't you be exert using? mustn't she be exert using? mustn't we be exert using? mustn't you be exert using? mustn't they be exert using?
Perfect	V-ing perfect
mustn't I have exert used? mustn't you have exert used? mustn't she have exert used? mustn't we have exert used? mustn't you have exert used? mustn't they have exert used?	mustn't I have been exert using? mustn't you have been exert using? mustn't she have been exert using? mustn't we have been exert using? mustn't you have been exert using? mustn't they have been exert using?