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