English verb conjugation
MUST WIS

Irregular verb: wis - wissed, wist - wissed, wist

Affirmation

Simple form	V-ing form
I must wis you must wis he must wis we must wis you must wis they must wis	I must be wising you must be wising he must be wising we must be wising you must be wising they must be wising
Perfect	V-ing perfect
I must have wissed, wist you must have wissed, wist he must have wissed, wist we must have wissed, wist you must have wissed, wist they must have wissed, wist	I must have been wising you must have been wising he must have been wising we must have been wising you must have been wising they must have been wising

Negation

Simple form	V-ing form
I must not wis you must not wis he must not wis we must not wis you must not wis they must not wis	I must not be wising you must not be wising he must not be wising we must not be wising you must not be wising they must not be wising
Perfect	V-ing perfect
I must not have wissed, wist you must not have wissed, wist he must not have wissed, wist we must not have wissed, wist you must not have wissed, wist they must not have wissed, wist	I must not have been wising you must not have been wising he must not have been wising we must not have been wising you must not have been wising they must not have been wising

Interrogative form

Simple form	V-ing form
must I wis? must you wis? must he wis? must we wis? must you wis? must they wis?	must I be wising? must you be wising? must he be wising? must we be wising? must you be wising? must they be wising?
Perfect	V-ing perfect
must I have wissed, wist? must you have wissed, wist? must he have wissed, wist? must we have wissed, wist? must you have wissed, wist? must they have wissed, wist?	must I have been wising? must you have been wising? must he have been wising? must we have been wising? must you have been wising? must they have been wising?

Interro-negative form

Simple form	V-ing form
must I not wis? must you not wis? must he not wis? must we not wis? must you not wis? must they not wis?	must I not be wising? must you not be wising? must he not be wising? must we not be wising? must you not be wising? must they not be wising?
Perfect	V-ing perfect
must I not have wissed, wist? must you not have wissed, wist? must he not have wissed, wist? must we not have wissed, wist? must you not have wissed, wist? must they not have wissed, wist?	must I not have been wising? must you not have been wising? must he not have been wising? must we not have been wising? must you not have been wising? must they not have been wising?