English verb conjugation
COULD FOIST

Regular verb: foist - foisted - foisted

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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