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