Regular verb: prevent - prevented - prevented
Simple form | V-ing form |
I may prevent you may prevent he may prevent we may prevent you may prevent they may prevent | I may be preventing you may be preventing he may be preventing we may be preventing you may be preventing they may be preventing |
Perfect | V-ing perfect |
I may have prevented you may have prevented he may have prevented we may have prevented you may have prevented they may have prevented | I may have been preventing you may have been preventing he may have been preventing we may have been preventing you may have been preventing they may have been preventing |
Simple form | V-ing form |
I mayn't prevent you mayn't prevent he mayn't prevent we mayn't prevent you mayn't prevent they mayn't prevent | I mayn't be preventing you mayn't be preventing he mayn't be preventing we mayn't be preventing you mayn't be preventing they mayn't be preventing |
Perfect | V-ing perfect |
I mayn't have prevented you mayn't have prevented he mayn't have prevented we mayn't have prevented you mayn't have prevented they mayn't have prevented | I mayn't have been preventing you mayn't have been preventing he mayn't have been preventing we mayn't have been preventing you mayn't have been preventing they mayn't have been preventing |
Simple form | V-ing form |
may I prevent? may you prevent? may he prevent? may we prevent? may you prevent? may they prevent? | may I be preventing? may you be preventing? may he be preventing? may we be preventing? may you be preventing? may they be preventing? |
Perfect | V-ing perfect |
may I have prevented? may you have prevented? may he have prevented? may we have prevented? may you have prevented? may they have prevented? | may I have been preventing? may you have been preventing? may he have been preventing? may we have been preventing? may you have been preventing? may they have been preventing? |
Simple form | V-ing form |
mayn't I prevent? mayn't you prevent? mayn't he prevent? mayn't we prevent? mayn't you prevent? mayn't they prevent? | mayn't I be preventing? mayn't you be preventing? mayn't he be preventing? mayn't we be preventing? mayn't you be preventing? mayn't they be preventing? |
Perfect | V-ing perfect |
mayn't I have prevented? mayn't you have prevented? mayn't he have prevented? mayn't we have prevented? mayn't you have prevented? mayn't they have prevented? | mayn't I have been preventing? mayn't you have been preventing? mayn't he have been preventing? mayn't we have been preventing? mayn't you have been preventing? mayn't they have been preventing? |