English verb conjugation
MUST EXTIRPATE

Regular verb: extirpate - extirpated - extirpated

Affirmation

Simple form	V-ing form
I must extirpate you must extirpate he must extirpate we must extirpate you must extirpate they must extirpate	I must be extirpating you must be extirpating he must be extirpating we must be extirpating you must be extirpating they must be extirpating
Perfect	V-ing perfect
I must have extirpated you must have extirpated he must have extirpated we must have extirpated you must have extirpated they must have extirpated	I must have been extirpating you must have been extirpating he must have been extirpating we must have been extirpating you must have been extirpating they must have been extirpating

Negation

Simple form	V-ing form
I mustn't extirpate you mustn't extirpate he mustn't extirpate we mustn't extirpate you mustn't extirpate they mustn't extirpate	I mustn't be extirpating you mustn't be extirpating he mustn't be extirpating we mustn't be extirpating you mustn't be extirpating they mustn't be extirpating
Perfect	V-ing perfect
I mustn't have extirpated you mustn't have extirpated he mustn't have extirpated we mustn't have extirpated you mustn't have extirpated they mustn't have extirpated	I mustn't have been extirpating you mustn't have been extirpating he mustn't have been extirpating we mustn't have been extirpating you mustn't have been extirpating they mustn't have been extirpating

Interrogative form

Simple form	V-ing form
must I extirpate? must you extirpate? must he extirpate? must we extirpate? must you extirpate? must they extirpate?	must I be extirpating? must you be extirpating? must he be extirpating? must we be extirpating? must you be extirpating? must they be extirpating?
Perfect	V-ing perfect
must I have extirpated? must you have extirpated? must he have extirpated? must we have extirpated? must you have extirpated? must they have extirpated?	must I have been extirpating? must you have been extirpating? must he have been extirpating? must we have been extirpating? must you have been extirpating? must they have been extirpating?

Interro-negative form

Simple form	V-ing form
mustn't I extirpate? mustn't you extirpate? mustn't he extirpate? mustn't we extirpate? mustn't you extirpate? mustn't they extirpate?	mustn't I be extirpating? mustn't you be extirpating? mustn't he be extirpating? mustn't we be extirpating? mustn't you be extirpating? mustn't they be extirpating?
Perfect	V-ing perfect
mustn't I have extirpated? mustn't you have extirpated? mustn't he have extirpated? mustn't we have extirpated? mustn't you have extirpated? mustn't they have extirpated?	mustn't I have been extirpating? mustn't you have been extirpating? mustn't he have been extirpating? mustn't we have been extirpating? mustn't you have been extirpating? mustn't they have been extirpating?