I may lower you may lower she may lower we may lower you may lower they may lower
V-ing form
I may be lowering you may be lowering she may be lowering we may be lowering you may be lowering they may be lowering
Perfect
I may have lowered you may have lowered she may have lowered we may have lowered you may have lowered they may have lowered
V-ing perfect
I may have been lowering you may have been lowering she may have been lowering we may have been lowering you may have been lowering they may have been lowering
Negation
Simple form
I mayn't lower you mayn't lower she mayn't lower we mayn't lower you mayn't lower they mayn't lower
V-ing form
I mayn't be lowering you mayn't be lowering she mayn't be lowering we mayn't be lowering you mayn't be lowering they mayn't be lowering
Perfect
I mayn't have lowered you mayn't have lowered she mayn't have lowered we mayn't have lowered you mayn't have lowered they mayn't have lowered
V-ing perfect
I mayn't have been lowering you mayn't have been lowering she mayn't have been lowering we mayn't have been lowering you mayn't have been lowering they mayn't have been lowering
Interrogative form
Simple form
may I lower? may you lower? may she lower? may we lower? may you lower? may they lower?
V-ing form
may I be lowering? may you be lowering? may she be lowering? may we be lowering? may you be lowering? may they be lowering?
Perfect
may I have lowered? may you have lowered? may she have lowered? may we have lowered? may you have lowered? may they have lowered?
V-ing perfect
may I have been lowering? may you have been lowering? may she have been lowering? may we have been lowering? may you have been lowering? may they have been lowering?
Interro-negative form
Simple form
mayn't I lower? mayn't you lower? mayn't she lower? mayn't we lower? mayn't you lower? mayn't they lower?
V-ing form
mayn't I be lowering? mayn't you be lowering? mayn't she be lowering? mayn't we be lowering? mayn't you be lowering? mayn't they be lowering?
Perfect
mayn't I have lowered? mayn't you have lowered? mayn't she have lowered? mayn't we have lowered? mayn't you have lowered? mayn't they have lowered?
V-ing perfect
mayn't I have been lowering? mayn't you have been lowering? mayn't she have been lowering? mayn't we have been lowering? mayn't you have been lowering? mayn't they have been lowering?