English verb conjugation
MUST EXCEPT

Regular verb: except - excepted - excepted

Affirmation

Simple form	V-ing form
I must except you must except he must except we must except you must except they must except	I must be excepting you must be excepting he must be excepting we must be excepting you must be excepting they must be excepting
Perfect	V-ing perfect
I must have excepted you must have excepted he must have excepted we must have excepted you must have excepted they must have excepted	I must have been excepting you must have been excepting he must have been excepting we must have been excepting you must have been excepting they must have been excepting

Negation

Simple form	V-ing form
I must not except you must not except he must not except we must not except you must not except they must not except	I must not be excepting you must not be excepting he must not be excepting we must not be excepting you must not be excepting they must not be excepting
Perfect	V-ing perfect
I must not have excepted you must not have excepted he must not have excepted we must not have excepted you must not have excepted they must not have excepted	I must not have been excepting you must not have been excepting he must not have been excepting we must not have been excepting you must not have been excepting they must not have been excepting

Interrogative form

Simple form	V-ing form
must I except? must you except? must he except? must we except? must you except? must they except?	must I be excepting? must you be excepting? must he be excepting? must we be excepting? must you be excepting? must they be excepting?
Perfect	V-ing perfect
must I have excepted? must you have excepted? must he have excepted? must we have excepted? must you have excepted? must they have excepted?	must I have been excepting? must you have been excepting? must he have been excepting? must we have been excepting? must you have been excepting? must they have been excepting?

Interro-negative form

Simple form	V-ing form
must I not except? must you not except? must he not except? must we not except? must you not except? must they not except?	must I not be excepting? must you not be excepting? must he not be excepting? must we not be excepting? must you not be excepting? must they not be excepting?
Perfect	V-ing perfect
must I not have excepted? must you not have excepted? must he not have excepted? must we not have excepted? must you not have excepted? must they not have excepted?	must I not have been excepting? must you not have been excepting? must he not have been excepting? must we not have been excepting? must you not have been excepting? must they not have been excepting?