I may pin you may pin she may pin we may pin you may pin they may pin
V-ing form
I may be pinning you may be pinning she may be pinning we may be pinning you may be pinning they may be pinning
Perfect
I may have pinned you may have pinned she may have pinned we may have pinned you may have pinned they may have pinned
V-ing perfect
I may have been pinning you may have been pinning she may have been pinning we may have been pinning you may have been pinning they may have been pinning
Negation
Simple form
I may not pin you may not pin she may not pin we may not pin you may not pin they may not pin
V-ing form
I may not be pinning you may not be pinning she may not be pinning we may not be pinning you may not be pinning they may not be pinning
Perfect
I may not have pinned you may not have pinned she may not have pinned we may not have pinned you may not have pinned they may not have pinned
V-ing perfect
I may not have been pinning you may not have been pinning she may not have been pinning we may not have been pinning you may not have been pinning they may not have been pinning
Interrogative form
Simple form
may I pin? may you pin? may she pin? may we pin? may you pin? may they pin?
V-ing form
may I be pinning? may you be pinning? may she be pinning? may we be pinning? may you be pinning? may they be pinning?
Perfect
may I have pinned? may you have pinned? may she have pinned? may we have pinned? may you have pinned? may they have pinned?
V-ing perfect
may I have been pinning? may you have been pinning? may she have been pinning? may we have been pinning? may you have been pinning? may they have been pinning?
Interro-negative form
Simple form
may I not pin? may you not pin? may she not pin? may we not pin? may you not pin? may they not pin?
V-ing form
may I not be pinning? may you not be pinning? may she not be pinning? may we not be pinning? may you not be pinning? may they not be pinning?
Perfect
may I not have pinned? may you not have pinned? may she not have pinned? may we not have pinned? may you not have pinned? may they not have pinned?
V-ing perfect
may I not have been pinning? may you not have been pinning? may she not have been pinning? may we not have been pinning? may you not have been pinning? may they not have been pinning?