I may slow you may slow he may slow we may slow you may slow they may slow
V-ing form
I may be slowing you may be slowing he may be slowing we may be slowing you may be slowing they may be slowing
Perfect
I may have slowed you may have slowed he may have slowed we may have slowed you may have slowed they may have slowed
V-ing perfect
I may have been slowing you may have been slowing he may have been slowing we may have been slowing you may have been slowing they may have been slowing
Negation
Simple form
I mayn't slow you mayn't slow he mayn't slow we mayn't slow you mayn't slow they mayn't slow
V-ing form
I mayn't be slowing you mayn't be slowing he mayn't be slowing we mayn't be slowing you mayn't be slowing they mayn't be slowing
Perfect
I mayn't have slowed you mayn't have slowed he mayn't have slowed we mayn't have slowed you mayn't have slowed they mayn't have slowed
V-ing perfect
I mayn't have been slowing you mayn't have been slowing he mayn't have been slowing we mayn't have been slowing you mayn't have been slowing they mayn't have been slowing
Interrogative form
Simple form
may I slow? may you slow? may he slow? may we slow? may you slow? may they slow?
V-ing form
may I be slowing? may you be slowing? may he be slowing? may we be slowing? may you be slowing? may they be slowing?
Perfect
may I have slowed? may you have slowed? may he have slowed? may we have slowed? may you have slowed? may they have slowed?
V-ing perfect
may I have been slowing? may you have been slowing? may he have been slowing? may we have been slowing? may you have been slowing? may they have been slowing?
Interro-negative form
Simple form
mayn't I slow? mayn't you slow? mayn't he slow? mayn't we slow? mayn't you slow? mayn't they slow?
V-ing form
mayn't I be slowing? mayn't you be slowing? mayn't he be slowing? mayn't we be slowing? mayn't you be slowing? mayn't they be slowing?
Perfect
mayn't I have slowed? mayn't you have slowed? mayn't he have slowed? mayn't we have slowed? mayn't you have slowed? mayn't they have slowed?
V-ing perfect
mayn't I have been slowing? mayn't you have been slowing? mayn't he have been slowing? mayn't we have been slowing? mayn't you have been slowing? mayn't they have been slowing?