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