Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may attend sth you may attend sth he may attend sth we may attend sth you may attend sth they may attend sth
V-ing form
I may be attend sthing you may be attend sthing he may be attend sthing we may be attend sthing you may be attend sthing they may be attend sthing
Perfect
I may have attend sthed you may have attend sthed he may have attend sthed we may have attend sthed you may have attend sthed they may have attend sthed
V-ing perfect
I may have been attend sthing you may have been attend sthing he may have been attend sthing we may have been attend sthing you may have been attend sthing they may have been attend sthing
Negation
Simple form
I may not attend sth you may not attend sth he may not attend sth we may not attend sth you may not attend sth they may not attend sth
V-ing form
I may not be attend sthing you may not be attend sthing he may not be attend sthing we may not be attend sthing you may not be attend sthing they may not be attend sthing
Perfect
I may not have attend sthed you may not have attend sthed he may not have attend sthed we may not have attend sthed you may not have attend sthed they may not have attend sthed
V-ing perfect
I may not have been attend sthing you may not have been attend sthing he may not have been attend sthing we may not have been attend sthing you may not have been attend sthing they may not have been attend sthing
Interrogative form
Simple form
may I attend sth? may you attend sth? may he attend sth? may we attend sth? may you attend sth? may they attend sth?
V-ing form
may I be attend sthing? may you be attend sthing? may he be attend sthing? may we be attend sthing? may you be attend sthing? may they be attend sthing?
Perfect
may I have attend sthed? may you have attend sthed? may he have attend sthed? may we have attend sthed? may you have attend sthed? may they have attend sthed?
V-ing perfect
may I have been attend sthing? may you have been attend sthing? may he have been attend sthing? may we have been attend sthing? may you have been attend sthing? may they have been attend sthing?
Interro-negative form
Simple form
may I not attend sth? may you not attend sth? may he not attend sth? may we not attend sth? may you not attend sth? may they not attend sth?
V-ing form
may I not be attend sthing? may you not be attend sthing? may he not be attend sthing? may we not be attend sthing? may you not be attend sthing? may they not be attend sthing?
Perfect
may I not have attend sthed? may you not have attend sthed? may he not have attend sthed? may we not have attend sthed? may you not have attend sthed? may they not have attend sthed?
V-ing perfect
may I not have been attend sthing? may you not have been attend sthing? may he not have been attend sthing? may we not have been attend sthing? may you not have been attend sthing? may they not have been attend sthing?