English verb conjugation
MAY TACK

Regular verb: tack - tacked - tacked

Affirmation

Simple form	V-ing form
I may tack you may tack he may tack we may tack you may tack they may tack	I may be tacking you may be tacking he may be tacking we may be tacking you may be tacking they may be tacking
Perfect	V-ing perfect
I may have tacked you may have tacked he may have tacked we may have tacked you may have tacked they may have tacked	I may have been tacking you may have been tacking he may have been tacking we may have been tacking you may have been tacking they may have been tacking

Negation

Simple form	V-ing form
I mayn't tack you mayn't tack he mayn't tack we mayn't tack you mayn't tack they mayn't tack	I mayn't be tacking you mayn't be tacking he mayn't be tacking we mayn't be tacking you mayn't be tacking they mayn't be tacking
Perfect	V-ing perfect
I mayn't have tacked you mayn't have tacked he mayn't have tacked we mayn't have tacked you mayn't have tacked they mayn't have tacked	I mayn't have been tacking you mayn't have been tacking he mayn't have been tacking we mayn't have been tacking you mayn't have been tacking they mayn't have been tacking

Interrogative form

Simple form	V-ing form
may I tack? may you tack? may he tack? may we tack? may you tack? may they tack?	may I be tacking? may you be tacking? may he be tacking? may we be tacking? may you be tacking? may they be tacking?
Perfect	V-ing perfect
may I have tacked? may you have tacked? may he have tacked? may we have tacked? may you have tacked? may they have tacked?	may I have been tacking? may you have been tacking? may he have been tacking? may we have been tacking? may you have been tacking? may they have been tacking?

Interro-negative form

Simple form	V-ing form
mayn't I tack? mayn't you tack? mayn't he tack? mayn't we tack? mayn't you tack? mayn't they tack?	mayn't I be tacking? mayn't you be tacking? mayn't he be tacking? mayn't we be tacking? mayn't you be tacking? mayn't they be tacking?
Perfect	V-ing perfect
mayn't I have tacked? mayn't you have tacked? mayn't he have tacked? mayn't we have tacked? mayn't you have tacked? mayn't they have tacked?	mayn't I have been tacking? mayn't you have been tacking? mayn't he have been tacking? mayn't we have been tacking? mayn't you have been tacking? mayn't they have been tacking?