English verb conjugation
MUST EXTRAPOLATE

Regular verb: extrapolate - extrapolated - extrapolated

Affirmation

Simple form	V-ing form
I must extrapolate you must extrapolate he must extrapolate we must extrapolate you must extrapolate they must extrapolate	I must be extrapolating you must be extrapolating he must be extrapolating we must be extrapolating you must be extrapolating they must be extrapolating
Perfect	V-ing perfect
I must have extrapolated you must have extrapolated he must have extrapolated we must have extrapolated you must have extrapolated they must have extrapolated	I must have been extrapolating you must have been extrapolating he must have been extrapolating we must have been extrapolating you must have been extrapolating they must have been extrapolating

Negation

Simple form	V-ing form
I mustn't extrapolate you mustn't extrapolate he mustn't extrapolate we mustn't extrapolate you mustn't extrapolate they mustn't extrapolate	I mustn't be extrapolating you mustn't be extrapolating he mustn't be extrapolating we mustn't be extrapolating you mustn't be extrapolating they mustn't be extrapolating
Perfect	V-ing perfect
I mustn't have extrapolated you mustn't have extrapolated he mustn't have extrapolated we mustn't have extrapolated you mustn't have extrapolated they mustn't have extrapolated	I mustn't have been extrapolating you mustn't have been extrapolating he mustn't have been extrapolating we mustn't have been extrapolating you mustn't have been extrapolating they mustn't have been extrapolating

Interrogative form

Simple form	V-ing form
must I extrapolate? must you extrapolate? must he extrapolate? must we extrapolate? must you extrapolate? must they extrapolate?	must I be extrapolating? must you be extrapolating? must he be extrapolating? must we be extrapolating? must you be extrapolating? must they be extrapolating?
Perfect	V-ing perfect
must I have extrapolated? must you have extrapolated? must he have extrapolated? must we have extrapolated? must you have extrapolated? must they have extrapolated?	must I have been extrapolating? must you have been extrapolating? must he have been extrapolating? must we have been extrapolating? must you have been extrapolating? must they have been extrapolating?

Interro-negative form

Simple form	V-ing form
mustn't I extrapolate? mustn't you extrapolate? mustn't he extrapolate? mustn't we extrapolate? mustn't you extrapolate? mustn't they extrapolate?	mustn't I be extrapolating? mustn't you be extrapolating? mustn't he be extrapolating? mustn't we be extrapolating? mustn't you be extrapolating? mustn't they be extrapolating?
Perfect	V-ing perfect
mustn't I have extrapolated? mustn't you have extrapolated? mustn't he have extrapolated? mustn't we have extrapolated? mustn't you have extrapolated? mustn't they have extrapolated?	mustn't I have been extrapolating? mustn't you have been extrapolating? mustn't he have been extrapolating? mustn't we have been extrapolating? mustn't you have been extrapolating? mustn't they have been extrapolating?