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 could not awake you could not awake he could not awake we could not awake you could not awake they could not awake
V-ing form
I could not be awaking you could not be awaking he could not be awaking we could not be awaking you could not be awaking they could not be awaking
Perfect
I could not have awoken, awaked you could not have awoken, awaked he could not have awoken, awaked we could not have awoken, awaked you could not have awoken, awaked they could not have awoken, awaked
V-ing perfect
I could not have been awaking you could not have been awaking he could not have been awaking we could not have been awaking you could not have been awaking they could not 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
could I not awake? could you not awake? could he not awake? could we not awake? could you not awake? could they not awake?
V-ing form
could I not be awaking? could you not be awaking? could he not be awaking? could we not be awaking? could you not be awaking? could they not be awaking?
Perfect
could I not have awoken, awaked? could you not have awoken, awaked? could he not have awoken, awaked? could we not have awoken, awaked? could you not have awoken, awaked? could they not have awoken, awaked?
V-ing perfect
could I not have been awaking? could you not have been awaking? could he not have been awaking? could we not have been awaking? could you not have been awaking? could they not have been awaking?