English verb conjugation
MUST TELEPHONE

Regular verb: telephone - telephoned - telephoned

Affirmation

Simple form	V-ing form
I must telephone you must telephone she must telephone we must telephone you must telephone they must telephone	I must be telephoning you must be telephoning she must be telephoning we must be telephoning you must be telephoning they must be telephoning
Perfect	V-ing perfect
I must have telephoned you must have telephoned she must have telephoned we must have telephoned you must have telephoned they must have telephoned	I must have been telephoning you must have been telephoning she must have been telephoning we must have been telephoning you must have been telephoning they must have been telephoning

Negation

Simple form	V-ing form
I mustn't telephone you mustn't telephone she mustn't telephone we mustn't telephone you mustn't telephone they mustn't telephone	I mustn't be telephoning you mustn't be telephoning she mustn't be telephoning we mustn't be telephoning you mustn't be telephoning they mustn't be telephoning
Perfect	V-ing perfect
I mustn't have telephoned you mustn't have telephoned she mustn't have telephoned we mustn't have telephoned you mustn't have telephoned they mustn't have telephoned	I mustn't have been telephoning you mustn't have been telephoning she mustn't have been telephoning we mustn't have been telephoning you mustn't have been telephoning they mustn't have been telephoning

Interrogative form

Simple form	V-ing form
must I telephone? must you telephone? must she telephone? must we telephone? must you telephone? must they telephone?	must I be telephoning? must you be telephoning? must she be telephoning? must we be telephoning? must you be telephoning? must they be telephoning?
Perfect	V-ing perfect
must I have telephoned? must you have telephoned? must she have telephoned? must we have telephoned? must you have telephoned? must they have telephoned?	must I have been telephoning? must you have been telephoning? must she have been telephoning? must we have been telephoning? must you have been telephoning? must they have been telephoning?

Interro-negative form

Simple form	V-ing form
mustn't I telephone? mustn't you telephone? mustn't she telephone? mustn't we telephone? mustn't you telephone? mustn't they telephone?	mustn't I be telephoning? mustn't you be telephoning? mustn't she be telephoning? mustn't we be telephoning? mustn't you be telephoning? mustn't they be telephoning?
Perfect	V-ing perfect
mustn't I have telephoned? mustn't you have telephoned? mustn't she have telephoned? mustn't we have telephoned? mustn't you have telephoned? mustn't they have telephoned?	mustn't I have been telephoning? mustn't you have been telephoning? mustn't she have been telephoning? mustn't we have been telephoning? mustn't you have been telephoning? mustn't they have been telephoning?