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