English verb conjugation
MUST CURD

Regular verb: curd - curded - curded

Affirmation

Simple form	V-ing form
I must curd you must curd he must curd we must curd you must curd they must curd	I must be curding you must be curding he must be curding we must be curding you must be curding they must be curding
Perfect	V-ing perfect
I must have curded you must have curded he must have curded we must have curded you must have curded they must have curded	I must have been curding you must have been curding he must have been curding we must have been curding you must have been curding they must have been curding

Negation

Simple form	V-ing form
I must not curd you must not curd he must not curd we must not curd you must not curd they must not curd	I must not be curding you must not be curding he must not be curding we must not be curding you must not be curding they must not be curding
Perfect	V-ing perfect
I must not have curded you must not have curded he must not have curded we must not have curded you must not have curded they must not have curded	I must not have been curding you must not have been curding he must not have been curding we must not have been curding you must not have been curding they must not have been curding

Interrogative form

Simple form	V-ing form
must I curd? must you curd? must he curd? must we curd? must you curd? must they curd?	must I be curding? must you be curding? must he be curding? must we be curding? must you be curding? must they be curding?
Perfect	V-ing perfect
must I have curded? must you have curded? must he have curded? must we have curded? must you have curded? must they have curded?	must I have been curding? must you have been curding? must he have been curding? must we have been curding? must you have been curding? must they have been curding?

Interro-negative form

Simple form	V-ing form
must I not curd? must you not curd? must he not curd? must we not curd? must you not curd? must they not curd?	must I not be curding? must you not be curding? must he not be curding? must we not be curding? must you not be curding? must they not be curding?
Perfect	V-ing perfect
must I not have curded? must you not have curded? must he not have curded? must we not have curded? must you not have curded? must they not have curded?	must I not have been curding? must you not have been curding? must he not have been curding? must we not have been curding? must you not have been curding? must they not have been curding?