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