I may heckle you may heckle he may heckle we may heckle you may heckle they may heckle
V-ing form
I may be heckling you may be heckling he may be heckling we may be heckling you may be heckling they may be heckling
Perfect
I may have heckled you may have heckled he may have heckled we may have heckled you may have heckled they may have heckled
V-ing perfect
I may have been heckling you may have been heckling he may have been heckling we may have been heckling you may have been heckling they may have been heckling
Negation
Simple form
I mayn't heckle you mayn't heckle he mayn't heckle we mayn't heckle you mayn't heckle they mayn't heckle
V-ing form
I mayn't be heckling you mayn't be heckling he mayn't be heckling we mayn't be heckling you mayn't be heckling they mayn't be heckling
Perfect
I mayn't have heckled you mayn't have heckled he mayn't have heckled we mayn't have heckled you mayn't have heckled they mayn't have heckled
V-ing perfect
I mayn't have been heckling you mayn't have been heckling he mayn't have been heckling we mayn't have been heckling you mayn't have been heckling they mayn't have been heckling
Interrogative form
Simple form
may I heckle? may you heckle? may he heckle? may we heckle? may you heckle? may they heckle?
V-ing form
may I be heckling? may you be heckling? may he be heckling? may we be heckling? may you be heckling? may they be heckling?
Perfect
may I have heckled? may you have heckled? may he have heckled? may we have heckled? may you have heckled? may they have heckled?
V-ing perfect
may I have been heckling? may you have been heckling? may he have been heckling? may we have been heckling? may you have been heckling? may they have been heckling?
Interro-negative form
Simple form
mayn't I heckle? mayn't you heckle? mayn't he heckle? mayn't we heckle? mayn't you heckle? mayn't they heckle?
V-ing form
mayn't I be heckling? mayn't you be heckling? mayn't he be heckling? mayn't we be heckling? mayn't you be heckling? mayn't they be heckling?
Perfect
mayn't I have heckled? mayn't you have heckled? mayn't he have heckled? mayn't we have heckled? mayn't you have heckled? mayn't they have heckled?
V-ing perfect
mayn't I have been heckling? mayn't you have been heckling? mayn't he have been heckling? mayn't we have been heckling? mayn't you have been heckling? mayn't they have been heckling?