I could cabin you could cabin she could cabin we could cabin you could cabin they could cabin
V-ing form
I could be cabining you could be cabining she could be cabining we could be cabining you could be cabining they could be cabining
Perfect
I could have cabined you could have cabined she could have cabined we could have cabined you could have cabined they could have cabined
V-ing perfect
I could have been cabining you could have been cabining she could have been cabining we could have been cabining you could have been cabining they could have been cabining
Negation
Simple form
I could not cabin you could not cabin she could not cabin we could not cabin you could not cabin they could not cabin
V-ing form
I could not be cabining you could not be cabining she could not be cabining we could not be cabining you could not be cabining they could not be cabining
Perfect
I could not have cabined you could not have cabined she could not have cabined we could not have cabined you could not have cabined they could not have cabined
V-ing perfect
I could not have been cabining you could not have been cabining she could not have been cabining we could not have been cabining you could not have been cabining they could not have been cabining
Interrogative form
Simple form
could I cabin? could you cabin? could she cabin? could we cabin? could you cabin? could they cabin?
V-ing form
could I be cabining? could you be cabining? could she be cabining? could we be cabining? could you be cabining? could they be cabining?
Perfect
could I have cabined? could you have cabined? could she have cabined? could we have cabined? could you have cabined? could they have cabined?
V-ing perfect
could I have been cabining? could you have been cabining? could she have been cabining? could we have been cabining? could you have been cabining? could they have been cabining?
Interro-negative form
Simple form
could I not cabin? could you not cabin? could she not cabin? could we not cabin? could you not cabin? could they not cabin?
V-ing form
could I not be cabining? could you not be cabining? could she not be cabining? could we not be cabining? could you not be cabining? could they not be cabining?
Perfect
could I not have cabined? could you not have cabined? could she not have cabined? could we not have cabined? could you not have cabined? could they not have cabined?
V-ing perfect
could I not have been cabining? could you not have been cabining? could she not have been cabining? could we not have been cabining? could you not have been cabining? could they not have been cabining?