English verb conjugation
COULD SLUG

Regular verb: slug - slugged - slugged

Affirmation

Simple form	V-ing form
I could slug you could slug she could slug we could slug you could slug they could slug	I could be slugging you could be slugging she could be slugging we could be slugging you could be slugging they could be slugging
Perfect	V-ing perfect
I could have slugged you could have slugged she could have slugged we could have slugged you could have slugged they could have slugged	I could have been slugging you could have been slugging she could have been slugging we could have been slugging you could have been slugging they could have been slugging

Negation

Simple form	V-ing form
I could not slug you could not slug she could not slug we could not slug you could not slug they could not slug	I could not be slugging you could not be slugging she could not be slugging we could not be slugging you could not be slugging they could not be slugging
Perfect	V-ing perfect
I could not have slugged you could not have slugged she could not have slugged we could not have slugged you could not have slugged they could not have slugged	I could not have been slugging you could not have been slugging she could not have been slugging we could not have been slugging you could not have been slugging they could not have been slugging

Interrogative form

Simple form	V-ing form
could I slug? could you slug? could she slug? could we slug? could you slug? could they slug?	could I be slugging? could you be slugging? could she be slugging? could we be slugging? could you be slugging? could they be slugging?
Perfect	V-ing perfect
could I have slugged? could you have slugged? could she have slugged? could we have slugged? could you have slugged? could they have slugged?	could I have been slugging? could you have been slugging? could she have been slugging? could we have been slugging? could you have been slugging? could they have been slugging?

Interro-negative form

Simple form	V-ing form
could I not slug? could you not slug? could she not slug? could we not slug? could you not slug? could they not slug?	could I not be slugging? could you not be slugging? could she not be slugging? could we not be slugging? could you not be slugging? could they not be slugging?
Perfect	V-ing perfect
could I not have slugged? could you not have slugged? could she not have slugged? could we not have slugged? could you not have slugged? could they not have slugged?	could I not have been slugging? could you not have been slugging? could she not have been slugging? could we not have been slugging? could you not have been slugging? could they not have been slugging?