English verb conjugation
MUST DETECT

Regular verb: detect - detected - detected

Affirmation

Simple form	V-ing form
I must detect you must detect he must detect we must detect you must detect they must detect	I must be detecting you must be detecting he must be detecting we must be detecting you must be detecting they must be detecting
Perfect	V-ing perfect
I must have detected you must have detected he must have detected we must have detected you must have detected they must have detected	I must have been detecting you must have been detecting he must have been detecting we must have been detecting you must have been detecting they must have been detecting

Negation

Simple form	V-ing form
I mustn't detect you mustn't detect he mustn't detect we mustn't detect you mustn't detect they mustn't detect	I mustn't be detecting you mustn't be detecting he mustn't be detecting we mustn't be detecting you mustn't be detecting they mustn't be detecting
Perfect	V-ing perfect
I mustn't have detected you mustn't have detected he mustn't have detected we mustn't have detected you mustn't have detected they mustn't have detected	I mustn't have been detecting you mustn't have been detecting he mustn't have been detecting we mustn't have been detecting you mustn't have been detecting they mustn't have been detecting

Interrogative form

Simple form	V-ing form
must I detect? must you detect? must he detect? must we detect? must you detect? must they detect?	must I be detecting? must you be detecting? must he be detecting? must we be detecting? must you be detecting? must they be detecting?
Perfect	V-ing perfect
must I have detected? must you have detected? must he have detected? must we have detected? must you have detected? must they have detected?	must I have been detecting? must you have been detecting? must he have been detecting? must we have been detecting? must you have been detecting? must they have been detecting?

Interro-negative form

Simple form	V-ing form
mustn't I detect? mustn't you detect? mustn't he detect? mustn't we detect? mustn't you detect? mustn't they detect?	mustn't I be detecting? mustn't you be detecting? mustn't he be detecting? mustn't we be detecting? mustn't you be detecting? mustn't they be detecting?
Perfect	V-ing perfect
mustn't I have detected? mustn't you have detected? mustn't he have detected? mustn't we have detected? mustn't you have detected? mustn't they have detected?	mustn't I have been detecting? mustn't you have been detecting? mustn't he have been detecting? mustn't we have been detecting? mustn't you have been detecting? mustn't they have been detecting?