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