I may burble you may burble she may burble we may burble you may burble they may burble
V-ing form
I may be burbling you may be burbling she may be burbling we may be burbling you may be burbling they may be burbling
Perfect
I may have burbled you may have burbled she may have burbled we may have burbled you may have burbled they may have burbled
V-ing perfect
I may have been burbling you may have been burbling she may have been burbling we may have been burbling you may have been burbling they may have been burbling
Negation
Simple form
I may not burble you may not burble she may not burble we may not burble you may not burble they may not burble
V-ing form
I may not be burbling you may not be burbling she may not be burbling we may not be burbling you may not be burbling they may not be burbling
Perfect
I may not have burbled you may not have burbled she may not have burbled we may not have burbled you may not have burbled they may not have burbled
V-ing perfect
I may not have been burbling you may not have been burbling she may not have been burbling we may not have been burbling you may not have been burbling they may not have been burbling
Interrogative form
Simple form
may I burble? may you burble? may she burble? may we burble? may you burble? may they burble?
V-ing form
may I be burbling? may you be burbling? may she be burbling? may we be burbling? may you be burbling? may they be burbling?
Perfect
may I have burbled? may you have burbled? may she have burbled? may we have burbled? may you have burbled? may they have burbled?
V-ing perfect
may I have been burbling? may you have been burbling? may she have been burbling? may we have been burbling? may you have been burbling? may they have been burbling?
Interro-negative form
Simple form
may I not burble? may you not burble? may she not burble? may we not burble? may you not burble? may they not burble?
V-ing form
may I not be burbling? may you not be burbling? may she not be burbling? may we not be burbling? may you not be burbling? may they not be burbling?
Perfect
may I not have burbled? may you not have burbled? may she not have burbled? may we not have burbled? may you not have burbled? may they not have burbled?
V-ing perfect
may I not have been burbling? may you not have been burbling? may she not have been burbling? may we not have been burbling? may you not have been burbling? may they not have been burbling?