I may bumble you may bumble he may bumble we may bumble you may bumble they may bumble
V-ing form
I may be bumbling you may be bumbling he may be bumbling we may be bumbling you may be bumbling they may be bumbling
Perfect
I may have bumbled you may have bumbled he may have bumbled we may have bumbled you may have bumbled they may have bumbled
V-ing perfect
I may have been bumbling you may have been bumbling he may have been bumbling we may have been bumbling you may have been bumbling they may have been bumbling
Negation
Simple form
I may not bumble you may not bumble he may not bumble we may not bumble you may not bumble they may not bumble
V-ing form
I may not be bumbling you may not be bumbling he may not be bumbling we may not be bumbling you may not be bumbling they may not be bumbling
Perfect
I may not have bumbled you may not have bumbled he may not have bumbled we may not have bumbled you may not have bumbled they may not have bumbled
V-ing perfect
I may not have been bumbling you may not have been bumbling he may not have been bumbling we may not have been bumbling you may not have been bumbling they may not have been bumbling
Interrogative form
Simple form
may I bumble? may you bumble? may he bumble? may we bumble? may you bumble? may they bumble?
V-ing form
may I be bumbling? may you be bumbling? may he be bumbling? may we be bumbling? may you be bumbling? may they be bumbling?
Perfect
may I have bumbled? may you have bumbled? may he have bumbled? may we have bumbled? may you have bumbled? may they have bumbled?
V-ing perfect
may I have been bumbling? may you have been bumbling? may he have been bumbling? may we have been bumbling? may you have been bumbling? may they have been bumbling?
Interro-negative form
Simple form
may I not bumble? may you not bumble? may he not bumble? may we not bumble? may you not bumble? may they not bumble?
V-ing form
may I not be bumbling? may you not be bumbling? may he not be bumbling? may we not be bumbling? may you not be bumbling? may they not be bumbling?
Perfect
may I not have bumbled? may you not have bumbled? may he not have bumbled? may we not have bumbled? may you not have bumbled? may they not have bumbled?
V-ing perfect
may I not have been bumbling? may you not have been bumbling? may he not have been bumbling? may we not have been bumbling? may you not have been bumbling? may they not have been bumbling?