I could whine you could whine he could whine we could whine you could whine they could whine
V-ing form
I could be whining you could be whining he could be whining we could be whining you could be whining they could be whining
Perfect
I could have whined you could have whined he could have whined we could have whined you could have whined they could have whined
V-ing perfect
I could have been whining you could have been whining he could have been whining we could have been whining you could have been whining they could have been whining
Negation
Simple form
I could not whine you could not whine he could not whine we could not whine you could not whine they could not whine
V-ing form
I could not be whining you could not be whining he could not be whining we could not be whining you could not be whining they could not be whining
Perfect
I could not have whined you could not have whined he could not have whined we could not have whined you could not have whined they could not have whined
V-ing perfect
I could not have been whining you could not have been whining he could not have been whining we could not have been whining you could not have been whining they could not have been whining
Interrogative form
Simple form
could I whine? could you whine? could he whine? could we whine? could you whine? could they whine?
V-ing form
could I be whining? could you be whining? could he be whining? could we be whining? could you be whining? could they be whining?
Perfect
could I have whined? could you have whined? could he have whined? could we have whined? could you have whined? could they have whined?
V-ing perfect
could I have been whining? could you have been whining? could he have been whining? could we have been whining? could you have been whining? could they have been whining?
Interro-negative form
Simple form
could I not whine? could you not whine? could he not whine? could we not whine? could you not whine? could they not whine?
V-ing form
could I not be whining? could you not be whining? could he not be whining? could we not be whining? could you not be whining? could they not be whining?
Perfect
could I not have whined? could you not have whined? could he not have whined? could we not have whined? could you not have whined? could they not have whined?
V-ing perfect
could I not have been whining? could you not have been whining? could he not have been whining? could we not have been whining? could you not have been whining? could they not have been whining?