English verb conjugation
MUST ARGUE

Regular verb: argue - argued - argued

Affirmation

Simple form	V-ing form
I must argue you must argue he must argue we must argue you must argue they must argue	I must be arguing you must be arguing he must be arguing we must be arguing you must be arguing they must be arguing
Perfect	V-ing perfect
I must have argued you must have argued he must have argued we must have argued you must have argued they must have argued	I must have been arguing you must have been arguing he must have been arguing we must have been arguing you must have been arguing they must have been arguing

Negation

Simple form	V-ing form
I mustn't argue you mustn't argue he mustn't argue we mustn't argue you mustn't argue they mustn't argue	I mustn't be arguing you mustn't be arguing he mustn't be arguing we mustn't be arguing you mustn't be arguing they mustn't be arguing
Perfect	V-ing perfect
I mustn't have argued you mustn't have argued he mustn't have argued we mustn't have argued you mustn't have argued they mustn't have argued	I mustn't have been arguing you mustn't have been arguing he mustn't have been arguing we mustn't have been arguing you mustn't have been arguing they mustn't have been arguing

Interrogative form

Simple form	V-ing form
must I argue? must you argue? must he argue? must we argue? must you argue? must they argue?	must I be arguing? must you be arguing? must he be arguing? must we be arguing? must you be arguing? must they be arguing?
Perfect	V-ing perfect
must I have argued? must you have argued? must he have argued? must we have argued? must you have argued? must they have argued?	must I have been arguing? must you have been arguing? must he have been arguing? must we have been arguing? must you have been arguing? must they have been arguing?

Interro-negative form

Simple form	V-ing form
mustn't I argue? mustn't you argue? mustn't he argue? mustn't we argue? mustn't you argue? mustn't they argue?	mustn't I be arguing? mustn't you be arguing? mustn't he be arguing? mustn't we be arguing? mustn't you be arguing? mustn't they be arguing?
Perfect	V-ing perfect
mustn't I have argued? mustn't you have argued? mustn't he have argued? mustn't we have argued? mustn't you have argued? mustn't they have argued?	mustn't I have been arguing? mustn't you have been arguing? mustn't he have been arguing? mustn't we have been arguing? mustn't you have been arguing? mustn't they have been arguing?