I may bob you may bob he may bob we may bob you may bob they may bob
V-ing form
I may be bobbing you may be bobbing he may be bobbing we may be bobbing you may be bobbing they may be bobbing
Perfect
I may have bobbed you may have bobbed he may have bobbed we may have bobbed you may have bobbed they may have bobbed
V-ing perfect
I may have been bobbing you may have been bobbing he may have been bobbing we may have been bobbing you may have been bobbing they may have been bobbing
Negation
Simple form
I may not bob you may not bob he may not bob we may not bob you may not bob they may not bob
V-ing form
I may not be bobbing you may not be bobbing he may not be bobbing we may not be bobbing you may not be bobbing they may not be bobbing
Perfect
I may not have bobbed you may not have bobbed he may not have bobbed we may not have bobbed you may not have bobbed they may not have bobbed
V-ing perfect
I may not have been bobbing you may not have been bobbing he may not have been bobbing we may not have been bobbing you may not have been bobbing they may not have been bobbing
Interrogative form
Simple form
may I bob? may you bob? may he bob? may we bob? may you bob? may they bob?
V-ing form
may I be bobbing? may you be bobbing? may he be bobbing? may we be bobbing? may you be bobbing? may they be bobbing?
Perfect
may I have bobbed? may you have bobbed? may he have bobbed? may we have bobbed? may you have bobbed? may they have bobbed?
V-ing perfect
may I have been bobbing? may you have been bobbing? may he have been bobbing? may we have been bobbing? may you have been bobbing? may they have been bobbing?
Interro-negative form
Simple form
may I not bob? may you not bob? may he not bob? may we not bob? may you not bob? may they not bob?
V-ing form
may I not be bobbing? may you not be bobbing? may he not be bobbing? may we not be bobbing? may you not be bobbing? may they not be bobbing?
Perfect
may I not have bobbed? may you not have bobbed? may he not have bobbed? may we not have bobbed? may you not have bobbed? may they not have bobbed?
V-ing perfect
may I not have been bobbing? may you not have been bobbing? may he not have been bobbing? may we not have been bobbing? may you not have been bobbing? may they not have been bobbing?