I may form you may form she may form we may form you may form they may form
V-ing form
I may be forming you may be forming she may be forming we may be forming you may be forming they may be forming
Perfect
I may have formed you may have formed she may have formed we may have formed you may have formed they may have formed
V-ing perfect
I may have been forming you may have been forming she may have been forming we may have been forming you may have been forming they may have been forming
Negation
Simple form
I may not form you may not form she may not form we may not form you may not form they may not form
V-ing form
I may not be forming you may not be forming she may not be forming we may not be forming you may not be forming they may not be forming
Perfect
I may not have formed you may not have formed she may not have formed we may not have formed you may not have formed they may not have formed
V-ing perfect
I may not have been forming you may not have been forming she may not have been forming we may not have been forming you may not have been forming they may not have been forming
Interrogative form
Simple form
may I form? may you form? may she form? may we form? may you form? may they form?
V-ing form
may I be forming? may you be forming? may she be forming? may we be forming? may you be forming? may they be forming?
Perfect
may I have formed? may you have formed? may she have formed? may we have formed? may you have formed? may they have formed?
V-ing perfect
may I have been forming? may you have been forming? may she have been forming? may we have been forming? may you have been forming? may they have been forming?
Interro-negative form
Simple form
may I not form? may you not form? may she not form? may we not form? may you not form? may they not form?
V-ing form
may I not be forming? may you not be forming? may she not be forming? may we not be forming? may you not be forming? may they not be forming?
Perfect
may I not have formed? may you not have formed? may she not have formed? may we not have formed? may you not have formed? may they not have formed?
V-ing perfect
may I not have been forming? may you not have been forming? may she not have been forming? may we not have been forming? may you not have been forming? may they not have been forming?