I may decerebrate you may decerebrate he may decerebrate we may decerebrate you may decerebrate they may decerebrate
V-ing form
I may be decerebrating you may be decerebrating he may be decerebrating we may be decerebrating you may be decerebrating they may be decerebrating
Perfect
I may have decerebrated you may have decerebrated he may have decerebrated we may have decerebrated you may have decerebrated they may have decerebrated
V-ing perfect
I may have been decerebrating you may have been decerebrating he may have been decerebrating we may have been decerebrating you may have been decerebrating they may have been decerebrating
Negation
Simple form
I mayn't decerebrate you mayn't decerebrate he mayn't decerebrate we mayn't decerebrate you mayn't decerebrate they mayn't decerebrate
V-ing form
I mayn't be decerebrating you mayn't be decerebrating he mayn't be decerebrating we mayn't be decerebrating you mayn't be decerebrating they mayn't be decerebrating
Perfect
I mayn't have decerebrated you mayn't have decerebrated he mayn't have decerebrated we mayn't have decerebrated you mayn't have decerebrated they mayn't have decerebrated
V-ing perfect
I mayn't have been decerebrating you mayn't have been decerebrating he mayn't have been decerebrating we mayn't have been decerebrating you mayn't have been decerebrating they mayn't have been decerebrating
Interrogative form
Simple form
may I decerebrate? may you decerebrate? may he decerebrate? may we decerebrate? may you decerebrate? may they decerebrate?
V-ing form
may I be decerebrating? may you be decerebrating? may he be decerebrating? may we be decerebrating? may you be decerebrating? may they be decerebrating?
Perfect
may I have decerebrated? may you have decerebrated? may he have decerebrated? may we have decerebrated? may you have decerebrated? may they have decerebrated?
V-ing perfect
may I have been decerebrating? may you have been decerebrating? may he have been decerebrating? may we have been decerebrating? may you have been decerebrating? may they have been decerebrating?
Interro-negative form
Simple form
mayn't I decerebrate? mayn't you decerebrate? mayn't he decerebrate? mayn't we decerebrate? mayn't you decerebrate? mayn't they decerebrate?
V-ing form
mayn't I be decerebrating? mayn't you be decerebrating? mayn't he be decerebrating? mayn't we be decerebrating? mayn't you be decerebrating? mayn't they be decerebrating?
Perfect
mayn't I have decerebrated? mayn't you have decerebrated? mayn't he have decerebrated? mayn't we have decerebrated? mayn't you have decerebrated? mayn't they have decerebrated?
V-ing perfect
mayn't I have been decerebrating? mayn't you have been decerebrating? mayn't he have been decerebrating? mayn't we have been decerebrating? mayn't you have been decerebrating? mayn't they have been decerebrating?