I could forsake you could forsake he could forsake we could forsake you could forsake they could forsake
V-ing form
I could be forsaking you could be forsaking he could be forsaking we could be forsaking you could be forsaking they could be forsaking
Perfect
I could have forsaken you could have forsaken he could have forsaken we could have forsaken you could have forsaken they could have forsaken
V-ing perfect
I could have been forsaking you could have been forsaking he could have been forsaking we could have been forsaking you could have been forsaking they could have been forsaking
Negation
Simple form
I could not forsake you could not forsake he could not forsake we could not forsake you could not forsake they could not forsake
V-ing form
I could not be forsaking you could not be forsaking he could not be forsaking we could not be forsaking you could not be forsaking they could not be forsaking
Perfect
I could not have forsaken you could not have forsaken he could not have forsaken we could not have forsaken you could not have forsaken they could not have forsaken
V-ing perfect
I could not have been forsaking you could not have been forsaking he could not have been forsaking we could not have been forsaking you could not have been forsaking they could not have been forsaking
Interrogative form
Simple form
could I forsake? could you forsake? could he forsake? could we forsake? could you forsake? could they forsake?
V-ing form
could I be forsaking? could you be forsaking? could he be forsaking? could we be forsaking? could you be forsaking? could they be forsaking?
Perfect
could I have forsaken? could you have forsaken? could he have forsaken? could we have forsaken? could you have forsaken? could they have forsaken?
V-ing perfect
could I have been forsaking? could you have been forsaking? could he have been forsaking? could we have been forsaking? could you have been forsaking? could they have been forsaking?
Interro-negative form
Simple form
could I not forsake? could you not forsake? could he not forsake? could we not forsake? could you not forsake? could they not forsake?
V-ing form
could I not be forsaking? could you not be forsaking? could he not be forsaking? could we not be forsaking? could you not be forsaking? could they not be forsaking?
Perfect
could I not have forsaken? could you not have forsaken? could he not have forsaken? could we not have forsaken? could you not have forsaken? could they not have forsaken?
V-ing perfect
could I not have been forsaking? could you not have been forsaking? could he not have been forsaking? could we not have been forsaking? could you not have been forsaking? could they not have been forsaking?