English verb conjugation
COULD SLURP

Regular verb: slurp - slurped - slurped

Affirmation

Simple form	V-ing form
I could slurp you could slurp he could slurp we could slurp you could slurp they could slurp	I could be slurping you could be slurping he could be slurping we could be slurping you could be slurping they could be slurping
Perfect	V-ing perfect
I could have slurped you could have slurped he could have slurped we could have slurped you could have slurped they could have slurped	I could have been slurping you could have been slurping he could have been slurping we could have been slurping you could have been slurping they could have been slurping

Negation

Simple form	V-ing form
I could not slurp you could not slurp he could not slurp we could not slurp you could not slurp they could not slurp	I could not be slurping you could not be slurping he could not be slurping we could not be slurping you could not be slurping they could not be slurping
Perfect	V-ing perfect
I could not have slurped you could not have slurped he could not have slurped we could not have slurped you could not have slurped they could not have slurped	I could not have been slurping you could not have been slurping he could not have been slurping we could not have been slurping you could not have been slurping they could not have been slurping

Interrogative form

Simple form	V-ing form
could I slurp? could you slurp? could he slurp? could we slurp? could you slurp? could they slurp?	could I be slurping? could you be slurping? could he be slurping? could we be slurping? could you be slurping? could they be slurping?
Perfect	V-ing perfect
could I have slurped? could you have slurped? could he have slurped? could we have slurped? could you have slurped? could they have slurped?	could I have been slurping? could you have been slurping? could he have been slurping? could we have been slurping? could you have been slurping? could they have been slurping?

Interro-negative form

Simple form	V-ing form
could I not slurp? could you not slurp? could he not slurp? could we not slurp? could you not slurp? could they not slurp?	could I not be slurping? could you not be slurping? could he not be slurping? could we not be slurping? could you not be slurping? could they not be slurping?
Perfect	V-ing perfect
could I not have slurped? could you not have slurped? could he not have slurped? could we not have slurped? could you not have slurped? could they not have slurped?	could I not have been slurping? could you not have been slurping? could he not have been slurping? could we not have been slurping? could you not have been slurping? could they not have been slurping?