I could awake you could awake he could awake we could awake you could awake they could awake
V-ing form
I could be awaking you could be awaking he could be awaking we could be awaking you could be awaking they could be awaking
Perfect
I could have awoken, awaked you could have awoken, awaked he could have awoken, awaked we could have awoken, awaked you could have awoken, awaked they could have awoken, awaked
V-ing perfect
I could have been awaking you could have been awaking he could have been awaking we could have been awaking you could have been awaking they could have been awaking
Negation
Simple form
I couldn't awake you couldn't awake he couldn't awake we couldn't awake you couldn't awake they couldn't awake
V-ing form
I couldn't be awaking you couldn't be awaking he couldn't be awaking we couldn't be awaking you couldn't be awaking they couldn't be awaking
Perfect
I couldn't have awoken, awaked you couldn't have awoken, awaked he couldn't have awoken, awaked we couldn't have awoken, awaked you couldn't have awoken, awaked they couldn't have awoken, awaked
V-ing perfect
I couldn't have been awaking you couldn't have been awaking he couldn't have been awaking we couldn't have been awaking you couldn't have been awaking they couldn't have been awaking
Interrogative form
Simple form
could I awake? could you awake? could he awake? could we awake? could you awake? could they awake?
V-ing form
could I be awaking? could you be awaking? could he be awaking? could we be awaking? could you be awaking? could they be awaking?
Perfect
could I have awoken, awaked? could you have awoken, awaked? could he have awoken, awaked? could we have awoken, awaked? could you have awoken, awaked? could they have awoken, awaked?
V-ing perfect
could I have been awaking? could you have been awaking? could he have been awaking? could we have been awaking? could you have been awaking? could they have been awaking?
Interro-negative form
Simple form
couldn't I awake? couldn't you awake? couldn't he awake? couldn't we awake? couldn't you awake? couldn't they awake?
V-ing form
couldn't I be awaking? couldn't you be awaking? couldn't he be awaking? couldn't we be awaking? couldn't you be awaking? couldn't they be awaking?
Perfect
couldn't I have awoken, awaked? couldn't you have awoken, awaked? couldn't he have awoken, awaked? couldn't we have awoken, awaked? couldn't you have awoken, awaked? couldn't they have awoken, awaked?
V-ing perfect
couldn't I have been awaking? couldn't you have been awaking? couldn't he have been awaking? couldn't we have been awaking? couldn't you have been awaking? couldn't they have been awaking?