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