English verb conjugation
MUST PRISE

Regular verb: prise - prised - prised

Affirmation

Simple form	V-ing form
I must prise you must prise he must prise we must prise you must prise they must prise	I must be prising you must be prising he must be prising we must be prising you must be prising they must be prising
Perfect	V-ing perfect
I must have prised you must have prised he must have prised we must have prised you must have prised they must have prised	I must have been prising you must have been prising he must have been prising we must have been prising you must have been prising they must have been prising

Negation

Simple form	V-ing form
I must not prise you must not prise he must not prise we must not prise you must not prise they must not prise	I must not be prising you must not be prising he must not be prising we must not be prising you must not be prising they must not be prising
Perfect	V-ing perfect
I must not have prised you must not have prised he must not have prised we must not have prised you must not have prised they must not have prised	I must not have been prising you must not have been prising he must not have been prising we must not have been prising you must not have been prising they must not have been prising

Interrogative form

Simple form	V-ing form
must I prise? must you prise? must he prise? must we prise? must you prise? must they prise?	must I be prising? must you be prising? must he be prising? must we be prising? must you be prising? must they be prising?
Perfect	V-ing perfect
must I have prised? must you have prised? must he have prised? must we have prised? must you have prised? must they have prised?	must I have been prising? must you have been prising? must he have been prising? must we have been prising? must you have been prising? must they have been prising?

Interro-negative form

Simple form	V-ing form
must I not prise? must you not prise? must he not prise? must we not prise? must you not prise? must they not prise?	must I not be prising? must you not be prising? must he not be prising? must we not be prising? must you not be prising? must they not be prising?
Perfect	V-ing perfect
must I not have prised? must you not have prised? must he not have prised? must we not have prised? must you not have prised? must they not have prised?	must I not have been prising? must you not have been prising? must he not have been prising? must we not have been prising? must you not have been prising? must they not have been prising?