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