English verb conjugation
MUST SURTAX

Regular verb: surtax - surtaxed - surtaxed

Affirmation

Simple form	V-ing form
I must surtax you must surtax he must surtax we must surtax you must surtax they must surtax	I must be surtaxing you must be surtaxing he must be surtaxing we must be surtaxing you must be surtaxing they must be surtaxing
Perfect	V-ing perfect
I must have surtaxed you must have surtaxed he must have surtaxed we must have surtaxed you must have surtaxed they must have surtaxed	I must have been surtaxing you must have been surtaxing he must have been surtaxing we must have been surtaxing you must have been surtaxing they must have been surtaxing

Negation

Simple form	V-ing form
I must not surtax you must not surtax he must not surtax we must not surtax you must not surtax they must not surtax	I must not be surtaxing you must not be surtaxing he must not be surtaxing we must not be surtaxing you must not be surtaxing they must not be surtaxing
Perfect	V-ing perfect
I must not have surtaxed you must not have surtaxed he must not have surtaxed we must not have surtaxed you must not have surtaxed they must not have surtaxed	I must not have been surtaxing you must not have been surtaxing he must not have been surtaxing we must not have been surtaxing you must not have been surtaxing they must not have been surtaxing

Interrogative form

Simple form	V-ing form
must I surtax? must you surtax? must he surtax? must we surtax? must you surtax? must they surtax?	must I be surtaxing? must you be surtaxing? must he be surtaxing? must we be surtaxing? must you be surtaxing? must they be surtaxing?
Perfect	V-ing perfect
must I have surtaxed? must you have surtaxed? must he have surtaxed? must we have surtaxed? must you have surtaxed? must they have surtaxed?	must I have been surtaxing? must you have been surtaxing? must he have been surtaxing? must we have been surtaxing? must you have been surtaxing? must they have been surtaxing?

Interro-negative form

Simple form	V-ing form
must I not surtax? must you not surtax? must he not surtax? must we not surtax? must you not surtax? must they not surtax?	must I not be surtaxing? must you not be surtaxing? must he not be surtaxing? must we not be surtaxing? must you not be surtaxing? must they not be surtaxing?
Perfect	V-ing perfect
must I not have surtaxed? must you not have surtaxed? must he not have surtaxed? must we not have surtaxed? must you not have surtaxed? must they not have surtaxed?	must I not have been surtaxing? must you not have been surtaxing? must he not have been surtaxing? must we not have been surtaxing? must you not have been surtaxing? must they not have been surtaxing?