I must immunize you must immunize she must immunize we must immunize you must immunize they must immunize
V-ing form
I must be immunizing you must be immunizing she must be immunizing we must be immunizing you must be immunizing they must be immunizing
Perfect
I must have immunized you must have immunized she must have immunized we must have immunized you must have immunized they must have immunized
V-ing perfect
I must have been immunizing you must have been immunizing she must have been immunizing we must have been immunizing you must have been immunizing they must have been immunizing
Negation
Simple form
I must not immunize you must not immunize she must not immunize we must not immunize you must not immunize they must not immunize
V-ing form
I must not be immunizing you must not be immunizing she must not be immunizing we must not be immunizing you must not be immunizing they must not be immunizing
Perfect
I must not have immunized you must not have immunized she must not have immunized we must not have immunized you must not have immunized they must not have immunized
V-ing perfect
I must not have been immunizing you must not have been immunizing she must not have been immunizing we must not have been immunizing you must not have been immunizing they must not have been immunizing
Interrogative form
Simple form
must I immunize? must you immunize? must she immunize? must we immunize? must you immunize? must they immunize?
V-ing form
must I be immunizing? must you be immunizing? must she be immunizing? must we be immunizing? must you be immunizing? must they be immunizing?
Perfect
must I have immunized? must you have immunized? must she have immunized? must we have immunized? must you have immunized? must they have immunized?
V-ing perfect
must I have been immunizing? must you have been immunizing? must she have been immunizing? must we have been immunizing? must you have been immunizing? must they have been immunizing?
Interro-negative form
Simple form
must I not immunize? must you not immunize? must she not immunize? must we not immunize? must you not immunize? must they not immunize?
V-ing form
must I not be immunizing? must you not be immunizing? must she not be immunizing? must we not be immunizing? must you not be immunizing? must they not be immunizing?
Perfect
must I not have immunized? must you not have immunized? must she not have immunized? must we not have immunized? must you not have immunized? must they not have immunized?
V-ing perfect
must I not have been immunizing? must you not have been immunizing? must she not have been immunizing? must we not have been immunizing? must you not have been immunizing? must they not have been immunizing?