English verb conjugation
MUST PHONE

Regular verb: phone - phoned - phoned

Affirmation

Simple form	V-ing form
I must phone you must phone she must phone we must phone you must phone they must phone	I must be phoning you must be phoning she must be phoning we must be phoning you must be phoning they must be phoning
Perfect	V-ing perfect
I must have phoned you must have phoned she must have phoned we must have phoned you must have phoned they must have phoned	I must have been phoning you must have been phoning she must have been phoning we must have been phoning you must have been phoning they must have been phoning

Negation

Simple form	V-ing form
I must not phone you must not phone she must not phone we must not phone you must not phone they must not phone	I must not be phoning you must not be phoning she must not be phoning we must not be phoning you must not be phoning they must not be phoning
Perfect	V-ing perfect
I must not have phoned you must not have phoned she must not have phoned we must not have phoned you must not have phoned they must not have phoned	I must not have been phoning you must not have been phoning she must not have been phoning we must not have been phoning you must not have been phoning they must not have been phoning

Interrogative form

Simple form	V-ing form
must I phone? must you phone? must she phone? must we phone? must you phone? must they phone?	must I be phoning? must you be phoning? must she be phoning? must we be phoning? must you be phoning? must they be phoning?
Perfect	V-ing perfect
must I have phoned? must you have phoned? must she have phoned? must we have phoned? must you have phoned? must they have phoned?	must I have been phoning? must you have been phoning? must she have been phoning? must we have been phoning? must you have been phoning? must they have been phoning?

Interro-negative form

Simple form	V-ing form
must I not phone? must you not phone? must she not phone? must we not phone? must you not phone? must they not phone?	must I not be phoning? must you not be phoning? must she not be phoning? must we not be phoning? must you not be phoning? must they not be phoning?
Perfect	V-ing perfect
must I not have phoned? must you not have phoned? must she not have phoned? must we not have phoned? must you not have phoned? must they not have phoned?	must I not have been phoning? must you not have been phoning? must she not have been phoning? must we not have been phoning? must you not have been phoning? must they not have been phoning?