English verb conjugation
COULD IMMOBILIZE

Regular verb: immobilize - immobilized - immobilized

Affirmation

Simple form	V-ing form
I could immobilize you could immobilize she could immobilize we could immobilize you could immobilize they could immobilize	I could be immobilizing you could be immobilizing she could be immobilizing we could be immobilizing you could be immobilizing they could be immobilizing
Perfect	V-ing perfect
I could have immobilized you could have immobilized she could have immobilized we could have immobilized you could have immobilized they could have immobilized	I could have been immobilizing you could have been immobilizing she could have been immobilizing we could have been immobilizing you could have been immobilizing they could have been immobilizing

Negation

Simple form	V-ing form
I couldn't immobilize you couldn't immobilize she couldn't immobilize we couldn't immobilize you couldn't immobilize they couldn't immobilize	I couldn't be immobilizing you couldn't be immobilizing she couldn't be immobilizing we couldn't be immobilizing you couldn't be immobilizing they couldn't be immobilizing
Perfect	V-ing perfect
I couldn't have immobilized you couldn't have immobilized she couldn't have immobilized we couldn't have immobilized you couldn't have immobilized they couldn't have immobilized	I couldn't have been immobilizing you couldn't have been immobilizing she couldn't have been immobilizing we couldn't have been immobilizing you couldn't have been immobilizing they couldn't have been immobilizing

Interrogative form

Simple form	V-ing form
could I immobilize? could you immobilize? could she immobilize? could we immobilize? could you immobilize? could they immobilize?	could I be immobilizing? could you be immobilizing? could she be immobilizing? could we be immobilizing? could you be immobilizing? could they be immobilizing?
Perfect	V-ing perfect
could I have immobilized? could you have immobilized? could she have immobilized? could we have immobilized? could you have immobilized? could they have immobilized?	could I have been immobilizing? could you have been immobilizing? could she have been immobilizing? could we have been immobilizing? could you have been immobilizing? could they have been immobilizing?

Interro-negative form

Simple form	V-ing form
couldn't I immobilize? couldn't you immobilize? couldn't she immobilize? couldn't we immobilize? couldn't you immobilize? couldn't they immobilize?	couldn't I be immobilizing? couldn't you be immobilizing? couldn't she be immobilizing? couldn't we be immobilizing? couldn't you be immobilizing? couldn't they be immobilizing?
Perfect	V-ing perfect
couldn't I have immobilized? couldn't you have immobilized? couldn't she have immobilized? couldn't we have immobilized? couldn't you have immobilized? couldn't they have immobilized?	couldn't I have been immobilizing? couldn't you have been immobilizing? couldn't she have been immobilizing? couldn't we have been immobilizing? couldn't you have been immobilizing? couldn't they have been immobilizing?