English verb conjugation
MUST WASH

Regular verb: wash - washed - washed

Affirmation

Simple form	V-ing form
I must wash you must wash he must wash we must wash you must wash they must wash	I must be washing you must be washing he must be washing we must be washing you must be washing they must be washing
Perfect	V-ing perfect
I must have washed you must have washed he must have washed we must have washed you must have washed they must have washed	I must have been washing you must have been washing he must have been washing we must have been washing you must have been washing they must have been washing

Negation

Simple form	V-ing form
I must not wash you must not wash he must not wash we must not wash you must not wash they must not wash	I must not be washing you must not be washing he must not be washing we must not be washing you must not be washing they must not be washing
Perfect	V-ing perfect
I must not have washed you must not have washed he must not have washed we must not have washed you must not have washed they must not have washed	I must not have been washing you must not have been washing he must not have been washing we must not have been washing you must not have been washing they must not have been washing

Interrogative form

Simple form	V-ing form
must I wash? must you wash? must he wash? must we wash? must you wash? must they wash?	must I be washing? must you be washing? must he be washing? must we be washing? must you be washing? must they be washing?
Perfect	V-ing perfect
must I have washed? must you have washed? must he have washed? must we have washed? must you have washed? must they have washed?	must I have been washing? must you have been washing? must he have been washing? must we have been washing? must you have been washing? must they have been washing?

Interro-negative form

Simple form	V-ing form
must I not wash? must you not wash? must he not wash? must we not wash? must you not wash? must they not wash?	must I not be washing? must you not be washing? must he not be washing? must we not be washing? must you not be washing? must they not be washing?
Perfect	V-ing perfect
must I not have washed? must you not have washed? must he not have washed? must we not have washed? must you not have washed? must they not have washed?	must I not have been washing? must you not have been washing? must he not have been washing? must we not have been washing? must you not have been washing? must they not have been washing?