English verb conjugation
COULD SKELETONIZE

Regular verb: skeletonize - skeletonized - skeletonized

Affirmation

Simple form	V-ing form
I could skeletonize you could skeletonize she could skeletonize we could skeletonize you could skeletonize they could skeletonize	I could be skeletonizing you could be skeletonizing she could be skeletonizing we could be skeletonizing you could be skeletonizing they could be skeletonizing
Perfect	V-ing perfect
I could have skeletonized you could have skeletonized she could have skeletonized we could have skeletonized you could have skeletonized they could have skeletonized	I could have been skeletonizing you could have been skeletonizing she could have been skeletonizing we could have been skeletonizing you could have been skeletonizing they could have been skeletonizing

Negation

Simple form	V-ing form
I couldn't skeletonize you couldn't skeletonize she couldn't skeletonize we couldn't skeletonize you couldn't skeletonize they couldn't skeletonize	I couldn't be skeletonizing you couldn't be skeletonizing she couldn't be skeletonizing we couldn't be skeletonizing you couldn't be skeletonizing they couldn't be skeletonizing
Perfect	V-ing perfect
I couldn't have skeletonized you couldn't have skeletonized she couldn't have skeletonized we couldn't have skeletonized you couldn't have skeletonized they couldn't have skeletonized	I couldn't have been skeletonizing you couldn't have been skeletonizing she couldn't have been skeletonizing we couldn't have been skeletonizing you couldn't have been skeletonizing they couldn't have been skeletonizing

Interrogative form

Simple form	V-ing form
could I skeletonize? could you skeletonize? could she skeletonize? could we skeletonize? could you skeletonize? could they skeletonize?	could I be skeletonizing? could you be skeletonizing? could she be skeletonizing? could we be skeletonizing? could you be skeletonizing? could they be skeletonizing?
Perfect	V-ing perfect
could I have skeletonized? could you have skeletonized? could she have skeletonized? could we have skeletonized? could you have skeletonized? could they have skeletonized?	could I have been skeletonizing? could you have been skeletonizing? could she have been skeletonizing? could we have been skeletonizing? could you have been skeletonizing? could they have been skeletonizing?

Interro-negative form

Simple form	V-ing form
couldn't I skeletonize? couldn't you skeletonize? couldn't she skeletonize? couldn't we skeletonize? couldn't you skeletonize? couldn't they skeletonize?	couldn't I be skeletonizing? couldn't you be skeletonizing? couldn't she be skeletonizing? couldn't we be skeletonizing? couldn't you be skeletonizing? couldn't they be skeletonizing?
Perfect	V-ing perfect
couldn't I have skeletonized? couldn't you have skeletonized? couldn't she have skeletonized? couldn't we have skeletonized? couldn't you have skeletonized? couldn't they have skeletonized?	couldn't I have been skeletonizing? couldn't you have been skeletonizing? couldn't she have been skeletonizing? couldn't we have been skeletonizing? couldn't you have been skeletonizing? couldn't they have been skeletonizing?