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