I may diphthongize you may diphthongize he may diphthongize we may diphthongize you may diphthongize they may diphthongize
V-ing form
I may be diphthongizing you may be diphthongizing he may be diphthongizing we may be diphthongizing you may be diphthongizing they may be diphthongizing
Perfect
I may have diphthongized you may have diphthongized he may have diphthongized we may have diphthongized you may have diphthongized they may have diphthongized
V-ing perfect
I may have been diphthongizing you may have been diphthongizing he may have been diphthongizing we may have been diphthongizing you may have been diphthongizing they may have been diphthongizing
Negation
Simple form
I may not diphthongize you may not diphthongize he may not diphthongize we may not diphthongize you may not diphthongize they may not diphthongize
V-ing form
I may not be diphthongizing you may not be diphthongizing he may not be diphthongizing we may not be diphthongizing you may not be diphthongizing they may not be diphthongizing
Perfect
I may not have diphthongized you may not have diphthongized he may not have diphthongized we may not have diphthongized you may not have diphthongized they may not have diphthongized
V-ing perfect
I may not have been diphthongizing you may not have been diphthongizing he may not have been diphthongizing we may not have been diphthongizing you may not have been diphthongizing they may not have been diphthongizing
Interrogative form
Simple form
may I diphthongize? may you diphthongize? may he diphthongize? may we diphthongize? may you diphthongize? may they diphthongize?
V-ing form
may I be diphthongizing? may you be diphthongizing? may he be diphthongizing? may we be diphthongizing? may you be diphthongizing? may they be diphthongizing?
Perfect
may I have diphthongized? may you have diphthongized? may he have diphthongized? may we have diphthongized? may you have diphthongized? may they have diphthongized?
V-ing perfect
may I have been diphthongizing? may you have been diphthongizing? may he have been diphthongizing? may we have been diphthongizing? may you have been diphthongizing? may they have been diphthongizing?
Interro-negative form
Simple form
may I not diphthongize? may you not diphthongize? may he not diphthongize? may we not diphthongize? may you not diphthongize? may they not diphthongize?
V-ing form
may I not be diphthongizing? may you not be diphthongizing? may he not be diphthongizing? may we not be diphthongizing? may you not be diphthongizing? may they not be diphthongizing?
Perfect
may I not have diphthongized? may you not have diphthongized? may he not have diphthongized? may we not have diphthongized? may you not have diphthongized? may they not have diphthongized?
V-ing perfect
may I not have been diphthongizing? may you not have been diphthongizing? may he not have been diphthongizing? may we not have been diphthongizing? may you not have been diphthongizing? may they not have been diphthongizing?