I may fast you may fast he may fast we may fast you may fast they may fast
V-ing form
I may be fasting you may be fasting he may be fasting we may be fasting you may be fasting they may be fasting
Perfect
I may have fasted you may have fasted he may have fasted we may have fasted you may have fasted they may have fasted
V-ing perfect
I may have been fasting you may have been fasting he may have been fasting we may have been fasting you may have been fasting they may have been fasting
Negation
Simple form
I may not fast you may not fast he may not fast we may not fast you may not fast they may not fast
V-ing form
I may not be fasting you may not be fasting he may not be fasting we may not be fasting you may not be fasting they may not be fasting
Perfect
I may not have fasted you may not have fasted he may not have fasted we may not have fasted you may not have fasted they may not have fasted
V-ing perfect
I may not have been fasting you may not have been fasting he may not have been fasting we may not have been fasting you may not have been fasting they may not have been fasting
Interrogative form
Simple form
may I fast? may you fast? may he fast? may we fast? may you fast? may they fast?
V-ing form
may I be fasting? may you be fasting? may he be fasting? may we be fasting? may you be fasting? may they be fasting?
Perfect
may I have fasted? may you have fasted? may he have fasted? may we have fasted? may you have fasted? may they have fasted?
V-ing perfect
may I have been fasting? may you have been fasting? may he have been fasting? may we have been fasting? may you have been fasting? may they have been fasting?
Interro-negative form
Simple form
may I not fast? may you not fast? may he not fast? may we not fast? may you not fast? may they not fast?
V-ing form
may I not be fasting? may you not be fasting? may he not be fasting? may we not be fasting? may you not be fasting? may they not be fasting?
Perfect
may I not have fasted? may you not have fasted? may he not have fasted? may we not have fasted? may you not have fasted? may they not have fasted?
V-ing perfect
may I not have been fasting? may you not have been fasting? may he not have been fasting? may we not have been fasting? may you not have been fasting? may they not have been fasting?