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