English verb conjugation
MUST SULFURISE

Regular verb: sulfurise - sulfurised - sulfurised

Affirmation

Simple form	V-ing form
I must sulfurise you must sulfurise she must sulfurise we must sulfurise you must sulfurise they must sulfurise	I must be sulfurising you must be sulfurising she must be sulfurising we must be sulfurising you must be sulfurising they must be sulfurising
Perfect	V-ing perfect
I must have sulfurised you must have sulfurised she must have sulfurised we must have sulfurised you must have sulfurised they must have sulfurised	I must have been sulfurising you must have been sulfurising she must have been sulfurising we must have been sulfurising you must have been sulfurising they must have been sulfurising

Negation

Simple form	V-ing form
I must not sulfurise you must not sulfurise she must not sulfurise we must not sulfurise you must not sulfurise they must not sulfurise	I must not be sulfurising you must not be sulfurising she must not be sulfurising we must not be sulfurising you must not be sulfurising they must not be sulfurising
Perfect	V-ing perfect
I must not have sulfurised you must not have sulfurised she must not have sulfurised we must not have sulfurised you must not have sulfurised they must not have sulfurised	I must not have been sulfurising you must not have been sulfurising she must not have been sulfurising we must not have been sulfurising you must not have been sulfurising they must not have been sulfurising

Interrogative form

Simple form	V-ing form
must I sulfurise? must you sulfurise? must she sulfurise? must we sulfurise? must you sulfurise? must they sulfurise?	must I be sulfurising? must you be sulfurising? must she be sulfurising? must we be sulfurising? must you be sulfurising? must they be sulfurising?
Perfect	V-ing perfect
must I have sulfurised? must you have sulfurised? must she have sulfurised? must we have sulfurised? must you have sulfurised? must they have sulfurised?	must I have been sulfurising? must you have been sulfurising? must she have been sulfurising? must we have been sulfurising? must you have been sulfurising? must they have been sulfurising?

Interro-negative form

Simple form	V-ing form
must I not sulfurise? must you not sulfurise? must she not sulfurise? must we not sulfurise? must you not sulfurise? must they not sulfurise?	must I not be sulfurising? must you not be sulfurising? must she not be sulfurising? must we not be sulfurising? must you not be sulfurising? must they not be sulfurising?
Perfect	V-ing perfect
must I not have sulfurised? must you not have sulfurised? must she not have sulfurised? must we not have sulfurised? must you not have sulfurised? must they not have sulfurised?	must I not have been sulfurising? must you not have been sulfurising? must she not have been sulfurising? must we not have been sulfurising? must you not have been sulfurising? must they not have been sulfurising?