I may slither you may slither he may slither we may slither you may slither they may slither
V-ing form
I may be slithering you may be slithering he may be slithering we may be slithering you may be slithering they may be slithering
Perfect
I may have slithered you may have slithered he may have slithered we may have slithered you may have slithered they may have slithered
V-ing perfect
I may have been slithering you may have been slithering he may have been slithering we may have been slithering you may have been slithering they may have been slithering
Negation
Simple form
I may not slither you may not slither he may not slither we may not slither you may not slither they may not slither
V-ing form
I may not be slithering you may not be slithering he may not be slithering we may not be slithering you may not be slithering they may not be slithering
Perfect
I may not have slithered you may not have slithered he may not have slithered we may not have slithered you may not have slithered they may not have slithered
V-ing perfect
I may not have been slithering you may not have been slithering he may not have been slithering we may not have been slithering you may not have been slithering they may not have been slithering
Interrogative form
Simple form
may I slither? may you slither? may he slither? may we slither? may you slither? may they slither?
V-ing form
may I be slithering? may you be slithering? may he be slithering? may we be slithering? may you be slithering? may they be slithering?
Perfect
may I have slithered? may you have slithered? may he have slithered? may we have slithered? may you have slithered? may they have slithered?
V-ing perfect
may I have been slithering? may you have been slithering? may he have been slithering? may we have been slithering? may you have been slithering? may they have been slithering?
Interro-negative form
Simple form
may I not slither? may you not slither? may he not slither? may we not slither? may you not slither? may they not slither?
V-ing form
may I not be slithering? may you not be slithering? may he not be slithering? may we not be slithering? may you not be slithering? may they not be slithering?
Perfect
may I not have slithered? may you not have slithered? may he not have slithered? may we not have slithered? may you not have slithered? may they not have slithered?
V-ing perfect
may I not have been slithering? may you not have been slithering? may he not have been slithering? may we not have been slithering? may you not have been slithering? may they not have been slithering?