I may devise you may devise he may devise we may devise you may devise they may devise
V-ing form
I may be devising you may be devising he may be devising we may be devising you may be devising they may be devising
Perfect
I may have devised you may have devised he may have devised we may have devised you may have devised they may have devised
V-ing perfect
I may have been devising you may have been devising he may have been devising we may have been devising you may have been devising they may have been devising
Negation
Simple form
I may not devise you may not devise he may not devise we may not devise you may not devise they may not devise
V-ing form
I may not be devising you may not be devising he may not be devising we may not be devising you may not be devising they may not be devising
Perfect
I may not have devised you may not have devised he may not have devised we may not have devised you may not have devised they may not have devised
V-ing perfect
I may not have been devising you may not have been devising he may not have been devising we may not have been devising you may not have been devising they may not have been devising
Interrogative form
Simple form
may I devise? may you devise? may he devise? may we devise? may you devise? may they devise?
V-ing form
may I be devising? may you be devising? may he be devising? may we be devising? may you be devising? may they be devising?
Perfect
may I have devised? may you have devised? may he have devised? may we have devised? may you have devised? may they have devised?
V-ing perfect
may I have been devising? may you have been devising? may he have been devising? may we have been devising? may you have been devising? may they have been devising?
Interro-negative form
Simple form
may I not devise? may you not devise? may he not devise? may we not devise? may you not devise? may they not devise?
V-ing form
may I not be devising? may you not be devising? may he not be devising? may we not be devising? may you not be devising? may they not be devising?
Perfect
may I not have devised? may you not have devised? may he not have devised? may we not have devised? may you not have devised? may they not have devised?
V-ing perfect
may I not have been devising? may you not have been devising? may he not have been devising? may we not have been devising? may you not have been devising? may they not have been devising?