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 may not purr you may not purr she may not purr we may not purr you may not purr they may not purr
V-ing form
I may not be purring you may not be purring she may not be purring we may not be purring you may not be purring they may not be purring
Perfect
I may not have purred you may not have purred she may not have purred we may not have purred you may not have purred they may not have purred
V-ing perfect
I may not have been purring you may not have been purring she may not have been purring we may not have been purring you may not have been purring they may not 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
may I not purr? may you not purr? may she not purr? may we not purr? may you not purr? may they not purr?
V-ing form
may I not be purring? may you not be purring? may she not be purring? may we not be purring? may you not be purring? may they not be purring?
Perfect
may I not have purred? may you not have purred? may she not have purred? may we not have purred? may you not have purred? may they not have purred?
V-ing perfect
may I not have been purring? may you not have been purring? may she not have been purring? may we not have been purring? may you not have been purring? may they not have been purring?