English verb conjugation
COULD SKELETONISE

Regular verb: skeletonise - skeletonised - skeletonised

Affirmation

Simple form	V-ing form
I could skeletonise you could skeletonise she could skeletonise we could skeletonise you could skeletonise they could skeletonise	I could be skeletonising you could be skeletonising she could be skeletonising we could be skeletonising you could be skeletonising they could be skeletonising
Perfect	V-ing perfect
I could have skeletonised you could have skeletonised she could have skeletonised we could have skeletonised you could have skeletonised they could have skeletonised	I could have been skeletonising you could have been skeletonising she could have been skeletonising we could have been skeletonising you could have been skeletonising they could have been skeletonising

Negation

Simple form	V-ing form
I could not skeletonise you could not skeletonise she could not skeletonise we could not skeletonise you could not skeletonise they could not skeletonise	I could not be skeletonising you could not be skeletonising she could not be skeletonising we could not be skeletonising you could not be skeletonising they could not be skeletonising
Perfect	V-ing perfect
I could not have skeletonised you could not have skeletonised she could not have skeletonised we could not have skeletonised you could not have skeletonised they could not have skeletonised	I could not have been skeletonising you could not have been skeletonising she could not have been skeletonising we could not have been skeletonising you could not have been skeletonising they could not have been skeletonising

Interrogative form

Simple form	V-ing form
could I skeletonise? could you skeletonise? could she skeletonise? could we skeletonise? could you skeletonise? could they skeletonise?	could I be skeletonising? could you be skeletonising? could she be skeletonising? could we be skeletonising? could you be skeletonising? could they be skeletonising?
Perfect	V-ing perfect
could I have skeletonised? could you have skeletonised? could she have skeletonised? could we have skeletonised? could you have skeletonised? could they have skeletonised?	could I have been skeletonising? could you have been skeletonising? could she have been skeletonising? could we have been skeletonising? could you have been skeletonising? could they have been skeletonising?

Interro-negative form

Simple form	V-ing form
could I not skeletonise? could you not skeletonise? could she not skeletonise? could we not skeletonise? could you not skeletonise? could they not skeletonise?	could I not be skeletonising? could you not be skeletonising? could she not be skeletonising? could we not be skeletonising? could you not be skeletonising? could they not be skeletonising?
Perfect	V-ing perfect
could I not have skeletonised? could you not have skeletonised? could she not have skeletonised? could we not have skeletonised? could you not have skeletonised? could they not have skeletonised?	could I not have been skeletonising? could you not have been skeletonising? could she not have been skeletonising? could we not have been skeletonising? could you not have been skeletonising? could they not have been skeletonising?