Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may prevent prevent you may prevent prevent he may prevent prevent we may prevent prevent you may prevent prevent they may prevent prevent
V-ing form
I may be prevent preventing you may be prevent preventing he may be prevent preventing we may be prevent preventing you may be prevent preventing they may be prevent preventing
Perfect
I may have prevent prevented you may have prevent prevented he may have prevent prevented we may have prevent prevented you may have prevent prevented they may have prevent prevented
V-ing perfect
I may have been prevent preventing you may have been prevent preventing he may have been prevent preventing we may have been prevent preventing you may have been prevent preventing they may have been prevent preventing
Negation
Simple form
I mayn't prevent prevent you mayn't prevent prevent he mayn't prevent prevent we mayn't prevent prevent you mayn't prevent prevent they mayn't prevent prevent
V-ing form
I mayn't be prevent preventing you mayn't be prevent preventing he mayn't be prevent preventing we mayn't be prevent preventing you mayn't be prevent preventing they mayn't be prevent preventing
Perfect
I mayn't have prevent prevented you mayn't have prevent prevented he mayn't have prevent prevented we mayn't have prevent prevented you mayn't have prevent prevented they mayn't have prevent prevented
V-ing perfect
I mayn't have been prevent preventing you mayn't have been prevent preventing he mayn't have been prevent preventing we mayn't have been prevent preventing you mayn't have been prevent preventing they mayn't have been prevent preventing
Interrogative form
Simple form
may I prevent prevent? may you prevent prevent? may he prevent prevent? may we prevent prevent? may you prevent prevent? may they prevent prevent?
V-ing form
may I be prevent preventing? may you be prevent preventing? may he be prevent preventing? may we be prevent preventing? may you be prevent preventing? may they be prevent preventing?
Perfect
may I have prevent prevented? may you have prevent prevented? may he have prevent prevented? may we have prevent prevented? may you have prevent prevented? may they have prevent prevented?
V-ing perfect
may I have been prevent preventing? may you have been prevent preventing? may he have been prevent preventing? may we have been prevent preventing? may you have been prevent preventing? may they have been prevent preventing?
Interro-negative form
Simple form
mayn't I prevent prevent? mayn't you prevent prevent? mayn't he prevent prevent? mayn't we prevent prevent? mayn't you prevent prevent? mayn't they prevent prevent?
V-ing form
mayn't I be prevent preventing? mayn't you be prevent preventing? mayn't he be prevent preventing? mayn't we be prevent preventing? mayn't you be prevent preventing? mayn't they be prevent preventing?
Perfect
mayn't I have prevent prevented? mayn't you have prevent prevented? mayn't he have prevent prevented? mayn't we have prevent prevented? mayn't you have prevent prevented? mayn't they have prevent prevented?
V-ing perfect
mayn't I have been prevent preventing? mayn't you have been prevent preventing? mayn't he have been prevent preventing? mayn't we have been prevent preventing? mayn't you have been prevent preventing? mayn't they have been prevent preventing?