I'll be preventing you'll be preventing she'll be preventing we'll be preventing you'll be preventing they'll be preventing
Perfect
I'll have prevented you'll have prevented she'll have prevented we'll have prevented you'll have prevented they'll have prevented
V-ing perfect
I'll have been preventing you'll have been preventing she'll have been preventing we'll have been preventing you'll have been preventing they'll have been preventing
Negation
Simple form
I won't prevent you won't prevent she won't prevent we won't prevent you won't prevent they won't prevent
V-ing form
I won't be preventing you won't be preventing she won't be preventing we won't be preventing you won't be preventing they won't be preventing
Perfect
I won't have prevented you won't have prevented she won't have prevented we won't have prevented you won't have prevented they won't have prevented
V-ing perfect
I won't have been preventing you won't have been preventing she won't have been preventing we won't have been preventing you won't have been preventing they won't have been preventing
Interrogative form
Simple form
will I prevent? will you prevent? will she prevent? will we prevent? will you prevent? will they prevent?
V-ing form
will I be preventing? will you be preventing? will she be preventing? will we be preventing? will you be preventing? will they be preventing?
Perfect
will I have prevented? will you have prevented? will she have prevented? will we have prevented? will you have prevented? will they have prevented?
V-ing perfect
will I have been preventing? will you have been preventing? will she have been preventing? will we have been preventing? will you have been preventing? will they have been preventing?
Interro-negative form
Simple form
won't I prevent? won't you prevent? won't she prevent? won't we prevent? won't you prevent? won't they prevent?
V-ing form
won't I be preventing? won't you be preventing? won't she be preventing? won't we be preventing? won't you be preventing? won't they be preventing?
Perfect
won't I have prevented? won't you have prevented? won't she have prevented? won't we have prevented? won't you have prevented? won't they have prevented?
V-ing perfect
won't I have been preventing? won't you have been preventing? won't she have been preventing? won't we have been preventing? won't you have been preventing? won't they have been preventing?