I may row you may row he may row we may row you may row they may row
V-ing form
I may be rowing you may be rowing he may be rowing we may be rowing you may be rowing they may be rowing
Perfect
I may have rowed you may have rowed he may have rowed we may have rowed you may have rowed they may have rowed
V-ing perfect
I may have been rowing you may have been rowing he may have been rowing we may have been rowing you may have been rowing they may have been rowing
Negation
Simple form
I may not row you may not row he may not row we may not row you may not row they may not row
V-ing form
I may not be rowing you may not be rowing he may not be rowing we may not be rowing you may not be rowing they may not be rowing
Perfect
I may not have rowed you may not have rowed he may not have rowed we may not have rowed you may not have rowed they may not have rowed
V-ing perfect
I may not have been rowing you may not have been rowing he may not have been rowing we may not have been rowing you may not have been rowing they may not have been rowing
Interrogative form
Simple form
may I row? may you row? may he row? may we row? may you row? may they row?
V-ing form
may I be rowing? may you be rowing? may he be rowing? may we be rowing? may you be rowing? may they be rowing?
Perfect
may I have rowed? may you have rowed? may he have rowed? may we have rowed? may you have rowed? may they have rowed?
V-ing perfect
may I have been rowing? may you have been rowing? may he have been rowing? may we have been rowing? may you have been rowing? may they have been rowing?
Interro-negative form
Simple form
may I not row? may you not row? may he not row? may we not row? may you not row? may they not row?
V-ing form
may I not be rowing? may you not be rowing? may he not be rowing? may we not be rowing? may you not be rowing? may they not be rowing?
Perfect
may I not have rowed? may you not have rowed? may he not have rowed? may we not have rowed? may you not have rowed? may they not have rowed?
V-ing perfect
may I not have been rowing? may you not have been rowing? may he not have been rowing? may we not have been rowing? may you not have been rowing? may they not have been rowing?