English verb conjugation
MUST INTERROGATE

Regular verb: interrogate - interrogated - interrogated

Affirmation

Simple form	V-ing form
I must interrogate you must interrogate he must interrogate we must interrogate you must interrogate they must interrogate	I must be interrogating you must be interrogating he must be interrogating we must be interrogating you must be interrogating they must be interrogating
Perfect	V-ing perfect
I must have interrogated you must have interrogated he must have interrogated we must have interrogated you must have interrogated they must have interrogated	I must have been interrogating you must have been interrogating he must have been interrogating we must have been interrogating you must have been interrogating they must have been interrogating

Negation

Simple form	V-ing form
I mustn't interrogate you mustn't interrogate he mustn't interrogate we mustn't interrogate you mustn't interrogate they mustn't interrogate	I mustn't be interrogating you mustn't be interrogating he mustn't be interrogating we mustn't be interrogating you mustn't be interrogating they mustn't be interrogating
Perfect	V-ing perfect
I mustn't have interrogated you mustn't have interrogated he mustn't have interrogated we mustn't have interrogated you mustn't have interrogated they mustn't have interrogated	I mustn't have been interrogating you mustn't have been interrogating he mustn't have been interrogating we mustn't have been interrogating you mustn't have been interrogating they mustn't have been interrogating

Interrogative form

Simple form	V-ing form
must I interrogate? must you interrogate? must he interrogate? must we interrogate? must you interrogate? must they interrogate?	must I be interrogating? must you be interrogating? must he be interrogating? must we be interrogating? must you be interrogating? must they be interrogating?
Perfect	V-ing perfect
must I have interrogated? must you have interrogated? must he have interrogated? must we have interrogated? must you have interrogated? must they have interrogated?	must I have been interrogating? must you have been interrogating? must he have been interrogating? must we have been interrogating? must you have been interrogating? must they have been interrogating?

Interro-negative form

Simple form	V-ing form
mustn't I interrogate? mustn't you interrogate? mustn't he interrogate? mustn't we interrogate? mustn't you interrogate? mustn't they interrogate?	mustn't I be interrogating? mustn't you be interrogating? mustn't he be interrogating? mustn't we be interrogating? mustn't you be interrogating? mustn't they be interrogating?
Perfect	V-ing perfect
mustn't I have interrogated? mustn't you have interrogated? mustn't he have interrogated? mustn't we have interrogated? mustn't you have interrogated? mustn't they have interrogated?	mustn't I have been interrogating? mustn't you have been interrogating? mustn't he have been interrogating? mustn't we have been interrogating? mustn't you have been interrogating? mustn't they have been interrogating?