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 may not centre you may not centre he may not centre we may not centre you may not centre they may not centre	I may not be centring you may not be centring he may not be centring we may not be centring you may not be centring they may not be centring
Perfect	V-ing perfect
I may not have centred you may not have centred he may not have centred we may not have centred you may not have centred they may not have centred	I may not have been centring you may not have been centring he may not have been centring we may not have been centring you may not have been centring they may not 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
may I not centre? may you not centre? may he not centre? may we not centre? may you not centre? may they not centre?	may I not be centring? may you not be centring? may he not be centring? may we not be centring? may you not be centring? may they not be centring?
Perfect	V-ing perfect
may I not have centred? may you not have centred? may he not have centred? may we not have centred? may you not have centred? may they not have centred?	may I not have been centring? may you not have been centring? may he not have been centring? may we not have been centring? may you not have been centring? may they not have been centring?