English verb conjugation
MUST INTERARCH

Regular verb: interarch - interarched - interarched

Affirmation

Simple form	V-ing form
I must interarch you must interarch he must interarch we must interarch you must interarch they must interarch	I must be interarching you must be interarching he must be interarching we must be interarching you must be interarching they must be interarching
Perfect	V-ing perfect
I must have interarched you must have interarched he must have interarched we must have interarched you must have interarched they must have interarched	I must have been interarching you must have been interarching he must have been interarching we must have been interarching you must have been interarching they must have been interarching

Negation

Simple form	V-ing form
I mustn't interarch you mustn't interarch he mustn't interarch we mustn't interarch you mustn't interarch they mustn't interarch	I mustn't be interarching you mustn't be interarching he mustn't be interarching we mustn't be interarching you mustn't be interarching they mustn't be interarching
Perfect	V-ing perfect
I mustn't have interarched you mustn't have interarched he mustn't have interarched we mustn't have interarched you mustn't have interarched they mustn't have interarched	I mustn't have been interarching you mustn't have been interarching he mustn't have been interarching we mustn't have been interarching you mustn't have been interarching they mustn't have been interarching

Interrogative form

Simple form	V-ing form
must I interarch? must you interarch? must he interarch? must we interarch? must you interarch? must they interarch?	must I be interarching? must you be interarching? must he be interarching? must we be interarching? must you be interarching? must they be interarching?
Perfect	V-ing perfect
must I have interarched? must you have interarched? must he have interarched? must we have interarched? must you have interarched? must they have interarched?	must I have been interarching? must you have been interarching? must he have been interarching? must we have been interarching? must you have been interarching? must they have been interarching?

Interro-negative form

Simple form	V-ing form
mustn't I interarch? mustn't you interarch? mustn't he interarch? mustn't we interarch? mustn't you interarch? mustn't they interarch?	mustn't I be interarching? mustn't you be interarching? mustn't he be interarching? mustn't we be interarching? mustn't you be interarching? mustn't they be interarching?
Perfect	V-ing perfect
mustn't I have interarched? mustn't you have interarched? mustn't he have interarched? mustn't we have interarched? mustn't you have interarched? mustn't they have interarched?	mustn't I have been interarching? mustn't you have been interarching? mustn't he have been interarching? mustn't we have been interarching? mustn't you have been interarching? mustn't they have been interarching?