English verb conjugation
MUST FOIST

Regular verb: foist - foisted - foisted

Affirmation

Simple form	V-ing form
I must foist you must foist he must foist we must foist you must foist they must foist	I must be foisting you must be foisting he must be foisting we must be foisting you must be foisting they must be foisting
Perfect	V-ing perfect
I must have foisted you must have foisted he must have foisted we must have foisted you must have foisted they must have foisted	I must have been foisting you must have been foisting he must have been foisting we must have been foisting you must have been foisting they must have been foisting

Negation

Simple form	V-ing form
I mustn't foist you mustn't foist he mustn't foist we mustn't foist you mustn't foist they mustn't foist	I mustn't be foisting you mustn't be foisting he mustn't be foisting we mustn't be foisting you mustn't be foisting they mustn't be foisting
Perfect	V-ing perfect
I mustn't have foisted you mustn't have foisted he mustn't have foisted we mustn't have foisted you mustn't have foisted they mustn't have foisted	I mustn't have been foisting you mustn't have been foisting he mustn't have been foisting we mustn't have been foisting you mustn't have been foisting they mustn't have been foisting

Interrogative form

Simple form	V-ing form
must I foist? must you foist? must he foist? must we foist? must you foist? must they foist?	must I be foisting? must you be foisting? must he be foisting? must we be foisting? must you be foisting? must they be foisting?
Perfect	V-ing perfect
must I have foisted? must you have foisted? must he have foisted? must we have foisted? must you have foisted? must they have foisted?	must I have been foisting? must you have been foisting? must he have been foisting? must we have been foisting? must you have been foisting? must they have been foisting?

Interro-negative form

Simple form	V-ing form
mustn't I foist? mustn't you foist? mustn't he foist? mustn't we foist? mustn't you foist? mustn't they foist?	mustn't I be foisting? mustn't you be foisting? mustn't he be foisting? mustn't we be foisting? mustn't you be foisting? mustn't they be foisting?
Perfect	V-ing perfect
mustn't I have foisted? mustn't you have foisted? mustn't he have foisted? mustn't we have foisted? mustn't you have foisted? mustn't they have foisted?	mustn't I have been foisting? mustn't you have been foisting? mustn't he have been foisting? mustn't we have been foisting? mustn't you have been foisting? mustn't they have been foisting?