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 may not extemporise you may not extemporise he may not extemporise we may not extemporise you may not extemporise they may not extemporise	I may not be extemporising you may not be extemporising he may not be extemporising we may not be extemporising you may not be extemporising they may not be extemporising
Perfect	V-ing perfect
I may not have extemporised you may not have extemporised he may not have extemporised we may not have extemporised you may not have extemporised they may not have extemporised	I may not have been extemporising you may not have been extemporising he may not have been extemporising we may not have been extemporising you may not have been extemporising they may not 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
may I not extemporise? may you not extemporise? may he not extemporise? may we not extemporise? may you not extemporise? may they not extemporise?	may I not be extemporising? may you not be extemporising? may he not be extemporising? may we not be extemporising? may you not be extemporising? may they not be extemporising?
Perfect	V-ing perfect
may I not have extemporised? may you not have extemporised? may he not have extemporised? may we not have extemporised? may you not have extemporised? may they not have extemporised?	may I not have been extemporising? may you not have been extemporising? may he not have been extemporising? may we not have been extemporising? may you not have been extemporising? may they not have been extemporising?