English verb conjugation
MUST ISOMERISE

Regular verb: isomerise - isomerised - isomerised

Affirmation

Simple form	V-ing form
I must isomerise you must isomerise he must isomerise we must isomerise you must isomerise they must isomerise	I must be isomerising you must be isomerising he must be isomerising we must be isomerising you must be isomerising they must be isomerising
Perfect	V-ing perfect
I must have isomerised you must have isomerised he must have isomerised we must have isomerised you must have isomerised they must have isomerised	I must have been isomerising you must have been isomerising he must have been isomerising we must have been isomerising you must have been isomerising they must have been isomerising

Negation

Simple form	V-ing form
I must not isomerise you must not isomerise he must not isomerise we must not isomerise you must not isomerise they must not isomerise	I must not be isomerising you must not be isomerising he must not be isomerising we must not be isomerising you must not be isomerising they must not be isomerising
Perfect	V-ing perfect
I must not have isomerised you must not have isomerised he must not have isomerised we must not have isomerised you must not have isomerised they must not have isomerised	I must not have been isomerising you must not have been isomerising he must not have been isomerising we must not have been isomerising you must not have been isomerising they must not have been isomerising

Interrogative form

Simple form	V-ing form
must I isomerise? must you isomerise? must he isomerise? must we isomerise? must you isomerise? must they isomerise?	must I be isomerising? must you be isomerising? must he be isomerising? must we be isomerising? must you be isomerising? must they be isomerising?
Perfect	V-ing perfect
must I have isomerised? must you have isomerised? must he have isomerised? must we have isomerised? must you have isomerised? must they have isomerised?	must I have been isomerising? must you have been isomerising? must he have been isomerising? must we have been isomerising? must you have been isomerising? must they have been isomerising?

Interro-negative form

Simple form	V-ing form
must I not isomerise? must you not isomerise? must he not isomerise? must we not isomerise? must you not isomerise? must they not isomerise?	must I not be isomerising? must you not be isomerising? must he not be isomerising? must we not be isomerising? must you not be isomerising? must they not be isomerising?
Perfect	V-ing perfect
must I not have isomerised? must you not have isomerised? must he not have isomerised? must we not have isomerised? must you not have isomerised? must they not have isomerised?	must I not have been isomerising? must you not have been isomerising? must he not have been isomerising? must we not have been isomerising? must you not have been isomerising? must they not have been isomerising?