English verb conjugation
MAY EXTEMPORISE

Regular verb: extemporise - extemporised - extemporised

Affirmation

Simple form	V-ing form
I may extemporise you may extemporise he may extemporise we may extemporise you may extemporise they may extemporise	I may be extemporising you may be extemporising he may be extemporising we may be extemporising you may be extemporising they may be extemporising
Perfect	V-ing perfect
I may have extemporised you may have extemporised he may have extemporised we may have extemporised you may have extemporised they may have extemporised	I may have been extemporising you may have been extemporising he may have been extemporising we may have been extemporising you may have been extemporising they may have been extemporising

Negation

Simple form	V-ing form
I mayn't extemporise you mayn't extemporise he mayn't extemporise we mayn't extemporise you mayn't extemporise they mayn't extemporise	I mayn't be extemporising you mayn't be extemporising he mayn't be extemporising we mayn't be extemporising you mayn't be extemporising they mayn't be extemporising
Perfect	V-ing perfect
I mayn't have extemporised you mayn't have extemporised he mayn't have extemporised we mayn't have extemporised you mayn't have extemporised they mayn't have extemporised	I mayn't have been extemporising you mayn't have been extemporising he mayn't have been extemporising we mayn't have been extemporising you mayn't have been extemporising they mayn't have been extemporising

Interrogative form

Simple form	V-ing form
may I extemporise? may you extemporise? may he extemporise? may we extemporise? may you extemporise? may they extemporise?	may I be extemporising? may you be extemporising? may he be extemporising? may we be extemporising? may you be extemporising? may they be extemporising?
Perfect	V-ing perfect
may I have extemporised? may you have extemporised? may he have extemporised? may we have extemporised? may you have extemporised? may they have extemporised?	may I have been extemporising? may you have been extemporising? may he have been extemporising? may we have been extemporising? may you have been extemporising? may they have been extemporising?

Interro-negative form

Simple form	V-ing form
mayn't I extemporise? mayn't you extemporise? mayn't he extemporise? mayn't we extemporise? mayn't you extemporise? mayn't they extemporise?	mayn't I be extemporising? mayn't you be extemporising? mayn't he be extemporising? mayn't we be extemporising? mayn't you be extemporising? mayn't they be extemporising?
Perfect	V-ing perfect
mayn't I have extemporised? mayn't you have extemporised? mayn't he have extemporised? mayn't we have extemporised? mayn't you have extemporised? mayn't they have extemporised?	mayn't I have been extemporising? mayn't you have been extemporising? mayn't he have been extemporising? mayn't we have been extemporising? mayn't you have been extemporising? mayn't they have been extemporising?