English verb conjugation
MUST SLOUCH

Regular verb: slouch - slouched - slouched

Affirmation

Simple form	V-ing form
I must slouch you must slouch he must slouch we must slouch you must slouch they must slouch	I must be slouching you must be slouching he must be slouching we must be slouching you must be slouching they must be slouching
Perfect	V-ing perfect
I must have slouched you must have slouched he must have slouched we must have slouched you must have slouched they must have slouched	I must have been slouching you must have been slouching he must have been slouching we must have been slouching you must have been slouching they must have been slouching

Negation

Simple form	V-ing form
I mustn't slouch you mustn't slouch he mustn't slouch we mustn't slouch you mustn't slouch they mustn't slouch	I mustn't be slouching you mustn't be slouching he mustn't be slouching we mustn't be slouching you mustn't be slouching they mustn't be slouching
Perfect	V-ing perfect
I mustn't have slouched you mustn't have slouched he mustn't have slouched we mustn't have slouched you mustn't have slouched they mustn't have slouched	I mustn't have been slouching you mustn't have been slouching he mustn't have been slouching we mustn't have been slouching you mustn't have been slouching they mustn't have been slouching

Interrogative form

Simple form	V-ing form
must I slouch? must you slouch? must he slouch? must we slouch? must you slouch? must they slouch?	must I be slouching? must you be slouching? must he be slouching? must we be slouching? must you be slouching? must they be slouching?
Perfect	V-ing perfect
must I have slouched? must you have slouched? must he have slouched? must we have slouched? must you have slouched? must they have slouched?	must I have been slouching? must you have been slouching? must he have been slouching? must we have been slouching? must you have been slouching? must they have been slouching?

Interro-negative form

Simple form	V-ing form
mustn't I slouch? mustn't you slouch? mustn't he slouch? mustn't we slouch? mustn't you slouch? mustn't they slouch?	mustn't I be slouching? mustn't you be slouching? mustn't he be slouching? mustn't we be slouching? mustn't you be slouching? mustn't they be slouching?
Perfect	V-ing perfect
mustn't I have slouched? mustn't you have slouched? mustn't he have slouched? mustn't we have slouched? mustn't you have slouched? mustn't they have slouched?	mustn't I have been slouching? mustn't you have been slouching? mustn't he have been slouching? mustn't we have been slouching? mustn't you have been slouching? mustn't they have been slouching?