English verb conjugation
MAY ZIPPER

Regular verb: zipper - zippered - zippered

Affirmation

Simple form	V-ing form
I may zipper you may zipper he may zipper we may zipper you may zipper they may zipper	I may be zippering you may be zippering he may be zippering we may be zippering you may be zippering they may be zippering
Perfect	V-ing perfect
I may have zippered you may have zippered he may have zippered we may have zippered you may have zippered they may have zippered	I may have been zippering you may have been zippering he may have been zippering we may have been zippering you may have been zippering they may have been zippering

Negation

Simple form	V-ing form
I mayn't zipper you mayn't zipper he mayn't zipper we mayn't zipper you mayn't zipper they mayn't zipper	I mayn't be zippering you mayn't be zippering he mayn't be zippering we mayn't be zippering you mayn't be zippering they mayn't be zippering
Perfect	V-ing perfect
I mayn't have zippered you mayn't have zippered he mayn't have zippered we mayn't have zippered you mayn't have zippered they mayn't have zippered	I mayn't have been zippering you mayn't have been zippering he mayn't have been zippering we mayn't have been zippering you mayn't have been zippering they mayn't have been zippering

Interrogative form

Simple form	V-ing form
may I zipper? may you zipper? may he zipper? may we zipper? may you zipper? may they zipper?	may I be zippering? may you be zippering? may he be zippering? may we be zippering? may you be zippering? may they be zippering?
Perfect	V-ing perfect
may I have zippered? may you have zippered? may he have zippered? may we have zippered? may you have zippered? may they have zippered?	may I have been zippering? may you have been zippering? may he have been zippering? may we have been zippering? may you have been zippering? may they have been zippering?

Interro-negative form

Simple form	V-ing form
mayn't I zipper? mayn't you zipper? mayn't he zipper? mayn't we zipper? mayn't you zipper? mayn't they zipper?	mayn't I be zippering? mayn't you be zippering? mayn't he be zippering? mayn't we be zippering? mayn't you be zippering? mayn't they be zippering?
Perfect	V-ing perfect
mayn't I have zippered? mayn't you have zippered? mayn't he have zippered? mayn't we have zippered? mayn't you have zippered? mayn't they have zippered?	mayn't I have been zippering? mayn't you have been zippering? mayn't he have been zippering? mayn't we have been zippering? mayn't you have been zippering? mayn't they have been zippering?