I must teleconference you must teleconference he must teleconference we must teleconference you must teleconference they must teleconference
Forme en V-ing
I must be teleconferencing you must be teleconferencing he must be teleconferencing we must be teleconferencing you must be teleconferencing they must be teleconferencing
Perfect
I must have teleconferenced you must have teleconferenced he must have teleconferenced we must have teleconferenced you must have teleconferenced they must have teleconferenced
Perfect en V-ing
I must have been teleconferencing you must have been teleconferencing he must have been teleconferencing we must have been teleconferencing you must have been teleconferencing they must have been teleconferencing
Négation
Forme simple
I mustn't teleconference you mustn't teleconference he mustn't teleconference we mustn't teleconference you mustn't teleconference they mustn't teleconference
Forme en V-ing
I mustn't be teleconferencing you mustn't be teleconferencing he mustn't be teleconferencing we mustn't be teleconferencing you mustn't be teleconferencing they mustn't be teleconferencing
Perfect
I mustn't have teleconferenced you mustn't have teleconferenced he mustn't have teleconferenced we mustn't have teleconferenced you mustn't have teleconferenced they mustn't have teleconferenced
Perfect en V-ing
I mustn't have been teleconferencing you mustn't have been teleconferencing he mustn't have been teleconferencing we mustn't have been teleconferencing you mustn't have been teleconferencing they mustn't have been teleconferencing
Forme interrogative
Forme simple
must I teleconference? must you teleconference? must he teleconference? must we teleconference? must you teleconference? must they teleconference?
Forme en V-ing
must I be teleconferencing? must you be teleconferencing? must he be teleconferencing? must we be teleconferencing? must you be teleconferencing? must they be teleconferencing?
Perfect
must I have teleconferenced? must you have teleconferenced? must he have teleconferenced? must we have teleconferenced? must you have teleconferenced? must they have teleconferenced?
Perfect en V-ing
must I have been teleconferencing? must you have been teleconferencing? must he have been teleconferencing? must we have been teleconferencing? must you have been teleconferencing? must they have been teleconferencing?
Forme interro-négative
Forme simple
mustn't I teleconference? mustn't you teleconference? mustn't he teleconference? mustn't we teleconference? mustn't you teleconference? mustn't they teleconference?
Forme en V-ing
mustn't I be teleconferencing? mustn't you be teleconferencing? mustn't he be teleconferencing? mustn't we be teleconferencing? mustn't you be teleconferencing? mustn't they be teleconferencing?
Perfect
mustn't I have teleconferenced? mustn't you have teleconferenced? mustn't he have teleconferenced? mustn't we have teleconferenced? mustn't you have teleconferenced? mustn't they have teleconferenced?
Perfect en V-ing
mustn't I have been teleconferencing? mustn't you have been teleconferencing? mustn't he have been teleconferencing? mustn't we have been teleconferencing? mustn't you have been teleconferencing? mustn't they have been teleconferencing?