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