English verb conjugation
COULD IMMOBILIZE

Regular verb: immobilize - immobilized - immobilized

Affirmation

Simple form	V-ing form
I could immobilize you could immobilize he could immobilize we could immobilize you could immobilize they could immobilize	I could be immobilizing you could be immobilizing he 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 he 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 he 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 he 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 he 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 he 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 he 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 he immobilize? could we immobilize? could you immobilize? could they immobilize?	could I be immobilizing? could you be immobilizing? could he 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 he 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 he 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 he 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 he 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 he 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 he have been immobilizing? couldn't we have been immobilizing? couldn't you have been immobilizing? couldn't they have been immobilizing?