English verb conjugation
MUST PARBOIL

Regular verb: parboil - parboiled - parboiled

Affirmation

Simple form	V-ing form
I must parboil you must parboil he must parboil we must parboil you must parboil they must parboil	I must be parboiling you must be parboiling he must be parboiling we must be parboiling you must be parboiling they must be parboiling
Perfect	V-ing perfect
I must have parboiled you must have parboiled he must have parboiled we must have parboiled you must have parboiled they must have parboiled	I must have been parboiling you must have been parboiling he must have been parboiling we must have been parboiling you must have been parboiling they must have been parboiling

Negation

Simple form	V-ing form
I must not parboil you must not parboil he must not parboil we must not parboil you must not parboil they must not parboil	I must not be parboiling you must not be parboiling he must not be parboiling we must not be parboiling you must not be parboiling they must not be parboiling
Perfect	V-ing perfect
I must not have parboiled you must not have parboiled he must not have parboiled we must not have parboiled you must not have parboiled they must not have parboiled	I must not have been parboiling you must not have been parboiling he must not have been parboiling we must not have been parboiling you must not have been parboiling they must not have been parboiling

Interrogative form

Simple form	V-ing form
must I parboil? must you parboil? must he parboil? must we parboil? must you parboil? must they parboil?	must I be parboiling? must you be parboiling? must he be parboiling? must we be parboiling? must you be parboiling? must they be parboiling?
Perfect	V-ing perfect
must I have parboiled? must you have parboiled? must he have parboiled? must we have parboiled? must you have parboiled? must they have parboiled?	must I have been parboiling? must you have been parboiling? must he have been parboiling? must we have been parboiling? must you have been parboiling? must they have been parboiling?

Interro-negative form

Simple form	V-ing form
must I not parboil? must you not parboil? must he not parboil? must we not parboil? must you not parboil? must they not parboil?	must I not be parboiling? must you not be parboiling? must he not be parboiling? must we not be parboiling? must you not be parboiling? must they not be parboiling?
Perfect	V-ing perfect
must I not have parboiled? must you not have parboiled? must he not have parboiled? must we not have parboiled? must you not have parboiled? must they not have parboiled?	must I not have been parboiling? must you not have been parboiling? must he not have been parboiling? must we not have been parboiling? must you not have been parboiling? must they not have been parboiling?