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 may not contest you may not contest he may not contest we may not contest you may not contest they may not contest
V-ing form
I may not be contesting you may not be contesting he may not be contesting we may not be contesting you may not be contesting they may not be contesting
Perfect
I may not have contested you may not have contested he may not have contested we may not have contested you may not have contested they may not have contested
V-ing perfect
I may not have been contesting you may not have been contesting he may not have been contesting we may not have been contesting you may not have been contesting they may not 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
may I not contest? may you not contest? may he not contest? may we not contest? may you not contest? may they not contest?
V-ing form
may I not be contesting? may you not be contesting? may he not be contesting? may we not be contesting? may you not be contesting? may they not be contesting?
Perfect
may I not have contested? may you not have contested? may he not have contested? may we not have contested? may you not have contested? may they not have contested?
V-ing perfect
may I not have been contesting? may you not have been contesting? may he not have been contesting? may we not have been contesting? may you not have been contesting? may they not have been contesting?