I could turpentine you could turpentine she could turpentine we could turpentine you could turpentine they could turpentine
V-ing form
I could be turpentining you could be turpentining she could be turpentining we could be turpentining you could be turpentining they could be turpentining
Perfect
I could have turpentined you could have turpentined she could have turpentined we could have turpentined you could have turpentined they could have turpentined
V-ing perfect
I could have been turpentining you could have been turpentining she could have been turpentining we could have been turpentining you could have been turpentining they could have been turpentining
Negation
Simple form
I could not turpentine you could not turpentine she could not turpentine we could not turpentine you could not turpentine they could not turpentine
V-ing form
I could not be turpentining you could not be turpentining she could not be turpentining we could not be turpentining you could not be turpentining they could not be turpentining
Perfect
I could not have turpentined you could not have turpentined she could not have turpentined we could not have turpentined you could not have turpentined they could not have turpentined
V-ing perfect
I could not have been turpentining you could not have been turpentining she could not have been turpentining we could not have been turpentining you could not have been turpentining they could not have been turpentining
Interrogative form
Simple form
could I turpentine? could you turpentine? could she turpentine? could we turpentine? could you turpentine? could they turpentine?
V-ing form
could I be turpentining? could you be turpentining? could she be turpentining? could we be turpentining? could you be turpentining? could they be turpentining?
Perfect
could I have turpentined? could you have turpentined? could she have turpentined? could we have turpentined? could you have turpentined? could they have turpentined?
V-ing perfect
could I have been turpentining? could you have been turpentining? could she have been turpentining? could we have been turpentining? could you have been turpentining? could they have been turpentining?
Interro-negative form
Simple form
could I not turpentine? could you not turpentine? could she not turpentine? could we not turpentine? could you not turpentine? could they not turpentine?
V-ing form
could I not be turpentining? could you not be turpentining? could she not be turpentining? could we not be turpentining? could you not be turpentining? could they not be turpentining?
Perfect
could I not have turpentined? could you not have turpentined? could she not have turpentined? could we not have turpentined? could you not have turpentined? could they not have turpentined?
V-ing perfect
could I not have been turpentining? could you not have been turpentining? could she not have been turpentining? could we not have been turpentining? could you not have been turpentining? could they not have been turpentining?