English verb conjugation
COULD FERULE

Regular verb: ferule - feruled - feruled

Affirmation

Simple form	V-ing form
I could ferule you could ferule he could ferule we could ferule you could ferule they could ferule	I could be feruling you could be feruling he could be feruling we could be feruling you could be feruling they could be feruling
Perfect	V-ing perfect
I could have feruled you could have feruled he could have feruled we could have feruled you could have feruled they could have feruled	I could have been feruling you could have been feruling he could have been feruling we could have been feruling you could have been feruling they could have been feruling

Negation

Simple form	V-ing form
I couldn't ferule you couldn't ferule he couldn't ferule we couldn't ferule you couldn't ferule they couldn't ferule	I couldn't be feruling you couldn't be feruling he couldn't be feruling we couldn't be feruling you couldn't be feruling they couldn't be feruling
Perfect	V-ing perfect
I couldn't have feruled you couldn't have feruled he couldn't have feruled we couldn't have feruled you couldn't have feruled they couldn't have feruled	I couldn't have been feruling you couldn't have been feruling he couldn't have been feruling we couldn't have been feruling you couldn't have been feruling they couldn't have been feruling

Interrogative form

Simple form	V-ing form
could I ferule? could you ferule? could he ferule? could we ferule? could you ferule? could they ferule?	could I be feruling? could you be feruling? could he be feruling? could we be feruling? could you be feruling? could they be feruling?
Perfect	V-ing perfect
could I have feruled? could you have feruled? could he have feruled? could we have feruled? could you have feruled? could they have feruled?	could I have been feruling? could you have been feruling? could he have been feruling? could we have been feruling? could you have been feruling? could they have been feruling?

Interro-negative form

Simple form	V-ing form
couldn't I ferule? couldn't you ferule? couldn't he ferule? couldn't we ferule? couldn't you ferule? couldn't they ferule?	couldn't I be feruling? couldn't you be feruling? couldn't he be feruling? couldn't we be feruling? couldn't you be feruling? couldn't they be feruling?
Perfect	V-ing perfect
couldn't I have feruled? couldn't you have feruled? couldn't he have feruled? couldn't we have feruled? couldn't you have feruled? couldn't they have feruled?	couldn't I have been feruling? couldn't you have been feruling? couldn't he have been feruling? couldn't we have been feruling? couldn't you have been feruling? couldn't they have been feruling?