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