English verb conjugation
MAY CENTRE

Regular verb: centre - centred - centred

Affirmation

Simple form	V-ing form
I may centre you may centre he may centre we may centre you may centre they may centre	I may be centring you may be centring he may be centring we may be centring you may be centring they may be centring
Perfect	V-ing perfect
I may have centred you may have centred he may have centred we may have centred you may have centred they may have centred	I may have been centring you may have been centring he may have been centring we may have been centring you may have been centring they may have been centring

Negation

Simple form	V-ing form
I mayn't centre you mayn't centre he mayn't centre we mayn't centre you mayn't centre they mayn't centre	I mayn't be centring you mayn't be centring he mayn't be centring we mayn't be centring you mayn't be centring they mayn't be centring
Perfect	V-ing perfect
I mayn't have centred you mayn't have centred he mayn't have centred we mayn't have centred you mayn't have centred they mayn't have centred	I mayn't have been centring you mayn't have been centring he mayn't have been centring we mayn't have been centring you mayn't have been centring they mayn't have been centring

Interrogative form

Simple form	V-ing form
may I centre? may you centre? may he centre? may we centre? may you centre? may they centre?	may I be centring? may you be centring? may he be centring? may we be centring? may you be centring? may they be centring?
Perfect	V-ing perfect
may I have centred? may you have centred? may he have centred? may we have centred? may you have centred? may they have centred?	may I have been centring? may you have been centring? may he have been centring? may we have been centring? may you have been centring? may they have been centring?

Interro-negative form

Simple form	V-ing form
mayn't I centre? mayn't you centre? mayn't he centre? mayn't we centre? mayn't you centre? mayn't they centre?	mayn't I be centring? mayn't you be centring? mayn't he be centring? mayn't we be centring? mayn't you be centring? mayn't they be centring?
Perfect	V-ing perfect
mayn't I have centred? mayn't you have centred? mayn't he have centred? mayn't we have centred? mayn't you have centred? mayn't they have centred?	mayn't I have been centring? mayn't you have been centring? mayn't he have been centring? mayn't we have been centring? mayn't you have been centring? mayn't they have been centring?