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