I may crook you may crook she may crook we may crook you may crook they may crook
V-ing form
I may be crooking you may be crooking she may be crooking we may be crooking you may be crooking they may be crooking
Perfect
I may have crooked you may have crooked she may have crooked we may have crooked you may have crooked they may have crooked
V-ing perfect
I may have been crooking you may have been crooking she may have been crooking we may have been crooking you may have been crooking they may have been crooking
Negation
Simple form
I may not crook you may not crook she may not crook we may not crook you may not crook they may not crook
V-ing form
I may not be crooking you may not be crooking she may not be crooking we may not be crooking you may not be crooking they may not be crooking
Perfect
I may not have crooked you may not have crooked she may not have crooked we may not have crooked you may not have crooked they may not have crooked
V-ing perfect
I may not have been crooking you may not have been crooking she may not have been crooking we may not have been crooking you may not have been crooking they may not have been crooking
Interrogative form
Simple form
may I crook? may you crook? may she crook? may we crook? may you crook? may they crook?
V-ing form
may I be crooking? may you be crooking? may she be crooking? may we be crooking? may you be crooking? may they be crooking?
Perfect
may I have crooked? may you have crooked? may she have crooked? may we have crooked? may you have crooked? may they have crooked?
V-ing perfect
may I have been crooking? may you have been crooking? may she have been crooking? may we have been crooking? may you have been crooking? may they have been crooking?
Interro-negative form
Simple form
may I not crook? may you not crook? may she not crook? may we not crook? may you not crook? may they not crook?
V-ing form
may I not be crooking? may you not be crooking? may she not be crooking? may we not be crooking? may you not be crooking? may they not be crooking?
Perfect
may I not have crooked? may you not have crooked? may she not have crooked? may we not have crooked? may you not have crooked? may they not have crooked?
V-ing perfect
may I not have been crooking? may you not have been crooking? may she not have been crooking? may we not have been crooking? may you not have been crooking? may they not have been crooking?