English verb conjugation
CAN FOIST

Regular verb: foist - foisted - foisted

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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