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