I may spoil you may spoil he may spoil we may spoil you may spoil they may spoil
V-ing form
I may be spoiling you may be spoiling he may be spoiling we may be spoiling you may be spoiling they may be spoiling
Perfect
I may have spoiled, spoilt you may have spoiled, spoilt he may have spoiled, spoilt we may have spoiled, spoilt you may have spoiled, spoilt they may have spoiled, spoilt
V-ing perfect
I may have been spoiling you may have been spoiling he may have been spoiling we may have been spoiling you may have been spoiling they may have been spoiling
Negation
Simple form
I mayn't spoil you mayn't spoil he mayn't spoil we mayn't spoil you mayn't spoil they mayn't spoil
V-ing form
I mayn't be spoiling you mayn't be spoiling he mayn't be spoiling we mayn't be spoiling you mayn't be spoiling they mayn't be spoiling
Perfect
I mayn't have spoiled, spoilt you mayn't have spoiled, spoilt he mayn't have spoiled, spoilt we mayn't have spoiled, spoilt you mayn't have spoiled, spoilt they mayn't have spoiled, spoilt
V-ing perfect
I mayn't have been spoiling you mayn't have been spoiling he mayn't have been spoiling we mayn't have been spoiling you mayn't have been spoiling they mayn't have been spoiling
Interrogative form
Simple form
may I spoil? may you spoil? may he spoil? may we spoil? may you spoil? may they spoil?
V-ing form
may I be spoiling? may you be spoiling? may he be spoiling? may we be spoiling? may you be spoiling? may they be spoiling?
Perfect
may I have spoiled, spoilt? may you have spoiled, spoilt? may he have spoiled, spoilt? may we have spoiled, spoilt? may you have spoiled, spoilt? may they have spoiled, spoilt?
V-ing perfect
may I have been spoiling? may you have been spoiling? may he have been spoiling? may we have been spoiling? may you have been spoiling? may they have been spoiling?
Interro-negative form
Simple form
mayn't I spoil? mayn't you spoil? mayn't he spoil? mayn't we spoil? mayn't you spoil? mayn't they spoil?
V-ing form
mayn't I be spoiling? mayn't you be spoiling? mayn't he be spoiling? mayn't we be spoiling? mayn't you be spoiling? mayn't they be spoiling?
Perfect
mayn't I have spoiled, spoilt? mayn't you have spoiled, spoilt? mayn't he have spoiled, spoilt? mayn't we have spoiled, spoilt? mayn't you have spoiled, spoilt? mayn't they have spoiled, spoilt?
V-ing perfect
mayn't I have been spoiling? mayn't you have been spoiling? mayn't he have been spoiling? mayn't we have been spoiling? mayn't you have been spoiling? mayn't they have been spoiling?