English verb conjugation
MUST ENJOY

Regular verb: enjoy - enjoyed - enjoyed

Affirmation

Simple form	V-ing form
I must enjoy you must enjoy she must enjoy we must enjoy you must enjoy they must enjoy	I must be enjoying you must be enjoying she must be enjoying we must be enjoying you must be enjoying they must be enjoying
Perfect	V-ing perfect
I must have enjoyed you must have enjoyed she must have enjoyed we must have enjoyed you must have enjoyed they must have enjoyed	I must have been enjoying you must have been enjoying she must have been enjoying we must have been enjoying you must have been enjoying they must have been enjoying

Negation

Simple form	V-ing form
I must not enjoy you must not enjoy she must not enjoy we must not enjoy you must not enjoy they must not enjoy	I must not be enjoying you must not be enjoying she must not be enjoying we must not be enjoying you must not be enjoying they must not be enjoying
Perfect	V-ing perfect
I must not have enjoyed you must not have enjoyed she must not have enjoyed we must not have enjoyed you must not have enjoyed they must not have enjoyed	I must not have been enjoying you must not have been enjoying she must not have been enjoying we must not have been enjoying you must not have been enjoying they must not have been enjoying

Interrogative form

Simple form	V-ing form
must I enjoy? must you enjoy? must she enjoy? must we enjoy? must you enjoy? must they enjoy?	must I be enjoying? must you be enjoying? must she be enjoying? must we be enjoying? must you be enjoying? must they be enjoying?
Perfect	V-ing perfect
must I have enjoyed? must you have enjoyed? must she have enjoyed? must we have enjoyed? must you have enjoyed? must they have enjoyed?	must I have been enjoying? must you have been enjoying? must she have been enjoying? must we have been enjoying? must you have been enjoying? must they have been enjoying?

Interro-negative form

Simple form	V-ing form
must I not enjoy? must you not enjoy? must she not enjoy? must we not enjoy? must you not enjoy? must they not enjoy?	must I not be enjoying? must you not be enjoying? must she not be enjoying? must we not be enjoying? must you not be enjoying? must they not be enjoying?
Perfect	V-ing perfect
must I not have enjoyed? must you not have enjoyed? must she not have enjoyed? must we not have enjoyed? must you not have enjoyed? must they not have enjoyed?	must I not have been enjoying? must you not have been enjoying? must she not have been enjoying? must we not have been enjoying? must you not have been enjoying? must they not have been enjoying?