English verb conjugation
COULD KEELHAUL

Regular verb: keelhaul - keelhauled - keelhauled

Affirmation

Simple form	V-ing form
I could keelhaul you could keelhaul she could keelhaul we could keelhaul you could keelhaul they could keelhaul	I could be keelhauling you could be keelhauling she could be keelhauling we could be keelhauling you could be keelhauling they could be keelhauling
Perfect	V-ing perfect
I could have keelhauled you could have keelhauled she could have keelhauled we could have keelhauled you could have keelhauled they could have keelhauled	I could have been keelhauling you could have been keelhauling she could have been keelhauling we could have been keelhauling you could have been keelhauling they could have been keelhauling

Negation

Simple form	V-ing form
I could not keelhaul you could not keelhaul she could not keelhaul we could not keelhaul you could not keelhaul they could not keelhaul	I could not be keelhauling you could not be keelhauling she could not be keelhauling we could not be keelhauling you could not be keelhauling they could not be keelhauling
Perfect	V-ing perfect
I could not have keelhauled you could not have keelhauled she could not have keelhauled we could not have keelhauled you could not have keelhauled they could not have keelhauled	I could not have been keelhauling you could not have been keelhauling she could not have been keelhauling we could not have been keelhauling you could not have been keelhauling they could not have been keelhauling

Interrogative form

Simple form	V-ing form
could I keelhaul? could you keelhaul? could she keelhaul? could we keelhaul? could you keelhaul? could they keelhaul?	could I be keelhauling? could you be keelhauling? could she be keelhauling? could we be keelhauling? could you be keelhauling? could they be keelhauling?
Perfect	V-ing perfect
could I have keelhauled? could you have keelhauled? could she have keelhauled? could we have keelhauled? could you have keelhauled? could they have keelhauled?	could I have been keelhauling? could you have been keelhauling? could she have been keelhauling? could we have been keelhauling? could you have been keelhauling? could they have been keelhauling?

Interro-negative form

Simple form	V-ing form
could I not keelhaul? could you not keelhaul? could she not keelhaul? could we not keelhaul? could you not keelhaul? could they not keelhaul?	could I not be keelhauling? could you not be keelhauling? could she not be keelhauling? could we not be keelhauling? could you not be keelhauling? could they not be keelhauling?
Perfect	V-ing perfect
could I not have keelhauled? could you not have keelhauled? could she not have keelhauled? could we not have keelhauled? could you not have keelhauled? could they not have keelhauled?	could I not have been keelhauling? could you not have been keelhauling? could she not have been keelhauling? could we not have been keelhauling? could you not have been keelhauling? could they not have been keelhauling?