English verb conjugation
COULD BEFOOL

Regular verb: befool - befooled - befooled

Affirmation

Simple form	V-ing form
I could befool you could befool he could befool we could befool you could befool they could befool	I could be befooling you could be befooling he could be befooling we could be befooling you could be befooling they could be befooling
Perfect	V-ing perfect
I could have befooled you could have befooled he could have befooled we could have befooled you could have befooled they could have befooled	I could have been befooling you could have been befooling he could have been befooling we could have been befooling you could have been befooling they could have been befooling

Negation

Simple form	V-ing form
I couldn't befool you couldn't befool he couldn't befool we couldn't befool you couldn't befool they couldn't befool	I couldn't be befooling you couldn't be befooling he couldn't be befooling we couldn't be befooling you couldn't be befooling they couldn't be befooling
Perfect	V-ing perfect
I couldn't have befooled you couldn't have befooled he couldn't have befooled we couldn't have befooled you couldn't have befooled they couldn't have befooled	I couldn't have been befooling you couldn't have been befooling he couldn't have been befooling we couldn't have been befooling you couldn't have been befooling they couldn't have been befooling

Interrogative form

Simple form	V-ing form
could I befool? could you befool? could he befool? could we befool? could you befool? could they befool?	could I be befooling? could you be befooling? could he be befooling? could we be befooling? could you be befooling? could they be befooling?
Perfect	V-ing perfect
could I have befooled? could you have befooled? could he have befooled? could we have befooled? could you have befooled? could they have befooled?	could I have been befooling? could you have been befooling? could he have been befooling? could we have been befooling? could you have been befooling? could they have been befooling?

Interro-negative form

Simple form	V-ing form
couldn't I befool? couldn't you befool? couldn't he befool? couldn't we befool? couldn't you befool? couldn't they befool?	couldn't I be befooling? couldn't you be befooling? couldn't he be befooling? couldn't we be befooling? couldn't you be befooling? couldn't they be befooling?
Perfect	V-ing perfect
couldn't I have befooled? couldn't you have befooled? couldn't he have befooled? couldn't we have befooled? couldn't you have befooled? couldn't they have befooled?	couldn't I have been befooling? couldn't you have been befooling? couldn't he have been befooling? couldn't we have been befooling? couldn't you have been befooling? couldn't they have been befooling?