English verb conjugation
MAY CLACK

Regular verb: clack - clacked - clacked

Affirmation

Simple form	V-ing form
I may clack you may clack he may clack we may clack you may clack they may clack	I may be clacking you may be clacking he may be clacking we may be clacking you may be clacking they may be clacking
Perfect	V-ing perfect
I may have clacked you may have clacked he may have clacked we may have clacked you may have clacked they may have clacked	I may have been clacking you may have been clacking he may have been clacking we may have been clacking you may have been clacking they may have been clacking

Negation

Simple form	V-ing form
I mayn't clack you mayn't clack he mayn't clack we mayn't clack you mayn't clack they mayn't clack	I mayn't be clacking you mayn't be clacking he mayn't be clacking we mayn't be clacking you mayn't be clacking they mayn't be clacking
Perfect	V-ing perfect
I mayn't have clacked you mayn't have clacked he mayn't have clacked we mayn't have clacked you mayn't have clacked they mayn't have clacked	I mayn't have been clacking you mayn't have been clacking he mayn't have been clacking we mayn't have been clacking you mayn't have been clacking they mayn't have been clacking

Interrogative form

Simple form	V-ing form
may I clack? may you clack? may he clack? may we clack? may you clack? may they clack?	may I be clacking? may you be clacking? may he be clacking? may we be clacking? may you be clacking? may they be clacking?
Perfect	V-ing perfect
may I have clacked? may you have clacked? may he have clacked? may we have clacked? may you have clacked? may they have clacked?	may I have been clacking? may you have been clacking? may he have been clacking? may we have been clacking? may you have been clacking? may they have been clacking?

Interro-negative form

Simple form	V-ing form
mayn't I clack? mayn't you clack? mayn't he clack? mayn't we clack? mayn't you clack? mayn't they clack?	mayn't I be clacking? mayn't you be clacking? mayn't he be clacking? mayn't we be clacking? mayn't you be clacking? mayn't they be clacking?
Perfect	V-ing perfect
mayn't I have clacked? mayn't you have clacked? mayn't he have clacked? mayn't we have clacked? mayn't you have clacked? mayn't they have clacked?	mayn't I have been clacking? mayn't you have been clacking? mayn't he have been clacking? mayn't we have been clacking? mayn't you have been clacking? mayn't they have been clacking?