English verb conjugation
MUST EXERCISE

Regular verb: exercise - exercised - exercised

Affirmation

Simple form	V-ing form
I must exercise you must exercise she must exercise we must exercise you must exercise they must exercise	I must be exercising you must be exercising she must be exercising we must be exercising you must be exercising they must be exercising
Perfect	V-ing perfect
I must have exercised you must have exercised she must have exercised we must have exercised you must have exercised they must have exercised	I must have been exercising you must have been exercising she must have been exercising we must have been exercising you must have been exercising they must have been exercising

Negation

Simple form	V-ing form
I mustn't exercise you mustn't exercise she mustn't exercise we mustn't exercise you mustn't exercise they mustn't exercise	I mustn't be exercising you mustn't be exercising she mustn't be exercising we mustn't be exercising you mustn't be exercising they mustn't be exercising
Perfect	V-ing perfect
I mustn't have exercised you mustn't have exercised she mustn't have exercised we mustn't have exercised you mustn't have exercised they mustn't have exercised	I mustn't have been exercising you mustn't have been exercising she mustn't have been exercising we mustn't have been exercising you mustn't have been exercising they mustn't have been exercising

Interrogative form

Simple form	V-ing form
must I exercise? must you exercise? must she exercise? must we exercise? must you exercise? must they exercise?	must I be exercising? must you be exercising? must she be exercising? must we be exercising? must you be exercising? must they be exercising?
Perfect	V-ing perfect
must I have exercised? must you have exercised? must she have exercised? must we have exercised? must you have exercised? must they have exercised?	must I have been exercising? must you have been exercising? must she have been exercising? must we have been exercising? must you have been exercising? must they have been exercising?

Interro-negative form

Simple form	V-ing form
mustn't I exercise? mustn't you exercise? mustn't she exercise? mustn't we exercise? mustn't you exercise? mustn't they exercise?	mustn't I be exercising? mustn't you be exercising? mustn't she be exercising? mustn't we be exercising? mustn't you be exercising? mustn't they be exercising?
Perfect	V-ing perfect
mustn't I have exercised? mustn't you have exercised? mustn't she have exercised? mustn't we have exercised? mustn't you have exercised? mustn't they have exercised?	mustn't I have been exercising? mustn't you have been exercising? mustn't she have been exercising? mustn't we have been exercising? mustn't you have been exercising? mustn't they have been exercising?