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