English verb conjugation
MAY PRACTISE

Regular verb: practise - practised - practised

Affirmation

Simple form	V-ing form
I may practise you may practise he may practise we may practise you may practise they may practise	I may be practising you may be practising he may be practising we may be practising you may be practising they may be practising
Perfect	V-ing perfect
I may have practised you may have practised he may have practised we may have practised you may have practised they may have practised	I may have been practising you may have been practising he may have been practising we may have been practising you may have been practising they may have been practising

Negation

Simple form	V-ing form
I mayn't practise you mayn't practise he mayn't practise we mayn't practise you mayn't practise they mayn't practise	I mayn't be practising you mayn't be practising he mayn't be practising we mayn't be practising you mayn't be practising they mayn't be practising
Perfect	V-ing perfect
I mayn't have practised you mayn't have practised he mayn't have practised we mayn't have practised you mayn't have practised they mayn't have practised	I mayn't have been practising you mayn't have been practising he mayn't have been practising we mayn't have been practising you mayn't have been practising they mayn't have been practising

Interrogative form

Simple form	V-ing form
may I practise? may you practise? may he practise? may we practise? may you practise? may they practise?	may I be practising? may you be practising? may he be practising? may we be practising? may you be practising? may they be practising?
Perfect	V-ing perfect
may I have practised? may you have practised? may he have practised? may we have practised? may you have practised? may they have practised?	may I have been practising? may you have been practising? may he have been practising? may we have been practising? may you have been practising? may they have been practising?

Interro-negative form

Simple form	V-ing form
mayn't I practise? mayn't you practise? mayn't he practise? mayn't we practise? mayn't you practise? mayn't they practise?	mayn't I be practising? mayn't you be practising? mayn't he be practising? mayn't we be practising? mayn't you be practising? mayn't they be practising?
Perfect	V-ing perfect
mayn't I have practised? mayn't you have practised? mayn't he have practised? mayn't we have practised? mayn't you have practised? mayn't they have practised?	mayn't I have been practising? mayn't you have been practising? mayn't he have been practising? mayn't we have been practising? mayn't you have been practising? mayn't they have been practising?