English verb conjugation
MUST KISS

Regular verb: kiss - kissed - kissed

Affirmation

Simple form	V-ing form
I must kiss you must kiss she must kiss we must kiss you must kiss they must kiss	I must be kissing you must be kissing she must be kissing we must be kissing you must be kissing they must be kissing
Perfect	V-ing perfect
I must have kissed you must have kissed she must have kissed we must have kissed you must have kissed they must have kissed	I must have been kissing you must have been kissing she must have been kissing we must have been kissing you must have been kissing they must have been kissing

Negation

Simple form	V-ing form
I mustn't kiss you mustn't kiss she mustn't kiss we mustn't kiss you mustn't kiss they mustn't kiss	I mustn't be kissing you mustn't be kissing she mustn't be kissing we mustn't be kissing you mustn't be kissing they mustn't be kissing
Perfect	V-ing perfect
I mustn't have kissed you mustn't have kissed she mustn't have kissed we mustn't have kissed you mustn't have kissed they mustn't have kissed	I mustn't have been kissing you mustn't have been kissing she mustn't have been kissing we mustn't have been kissing you mustn't have been kissing they mustn't have been kissing

Interrogative form

Simple form	V-ing form
must I kiss? must you kiss? must she kiss? must we kiss? must you kiss? must they kiss?	must I be kissing? must you be kissing? must she be kissing? must we be kissing? must you be kissing? must they be kissing?
Perfect	V-ing perfect
must I have kissed? must you have kissed? must she have kissed? must we have kissed? must you have kissed? must they have kissed?	must I have been kissing? must you have been kissing? must she have been kissing? must we have been kissing? must you have been kissing? must they have been kissing?

Interro-negative form

Simple form	V-ing form
mustn't I kiss? mustn't you kiss? mustn't she kiss? mustn't we kiss? mustn't you kiss? mustn't they kiss?	mustn't I be kissing? mustn't you be kissing? mustn't she be kissing? mustn't we be kissing? mustn't you be kissing? mustn't they be kissing?
Perfect	V-ing perfect
mustn't I have kissed? mustn't you have kissed? mustn't she have kissed? mustn't we have kissed? mustn't you have kissed? mustn't they have kissed?	mustn't I have been kissing? mustn't you have been kissing? mustn't she have been kissing? mustn't we have been kissing? mustn't you have been kissing? mustn't they have been kissing?