I could energize you could energize he could energize we could energize you could energize they could energize
V-ing form
I could be energizing you could be energizing he could be energizing we could be energizing you could be energizing they could be energizing
Perfect
I could have energized you could have energized he could have energized we could have energized you could have energized they could have energized
V-ing perfect
I could have been energizing you could have been energizing he could have been energizing we could have been energizing you could have been energizing they could have been energizing
Negation
Simple form
I couldn't energize you couldn't energize he couldn't energize we couldn't energize you couldn't energize they couldn't energize
V-ing form
I couldn't be energizing you couldn't be energizing he couldn't be energizing we couldn't be energizing you couldn't be energizing they couldn't be energizing
Perfect
I couldn't have energized you couldn't have energized he couldn't have energized we couldn't have energized you couldn't have energized they couldn't have energized
V-ing perfect
I couldn't have been energizing you couldn't have been energizing he couldn't have been energizing we couldn't have been energizing you couldn't have been energizing they couldn't have been energizing
Interrogative form
Simple form
could I energize? could you energize? could he energize? could we energize? could you energize? could they energize?
V-ing form
could I be energizing? could you be energizing? could he be energizing? could we be energizing? could you be energizing? could they be energizing?
Perfect
could I have energized? could you have energized? could he have energized? could we have energized? could you have energized? could they have energized?
V-ing perfect
could I have been energizing? could you have been energizing? could he have been energizing? could we have been energizing? could you have been energizing? could they have been energizing?
Interro-negative form
Simple form
couldn't I energize? couldn't you energize? couldn't he energize? couldn't we energize? couldn't you energize? couldn't they energize?
V-ing form
couldn't I be energizing? couldn't you be energizing? couldn't he be energizing? couldn't we be energizing? couldn't you be energizing? couldn't they be energizing?
Perfect
couldn't I have energized? couldn't you have energized? couldn't he have energized? couldn't we have energized? couldn't you have energized? couldn't they have energized?
V-ing perfect
couldn't I have been energizing? couldn't you have been energizing? couldn't he have been energizing? couldn't we have been energizing? couldn't you have been energizing? couldn't they have been energizing?