I must displace you must displace she must displace we must displace you must displace they must displace
Forme en V-ing
I must be displacing you must be displacing she must be displacing we must be displacing you must be displacing they must be displacing
Perfect
I must have displaced you must have displaced she must have displaced we must have displaced you must have displaced they must have displaced
Perfect en V-ing
I must have been displacing you must have been displacing she must have been displacing we must have been displacing you must have been displacing they must have been displacing
Négation
Forme simple
I mustn't displace you mustn't displace she mustn't displace we mustn't displace you mustn't displace they mustn't displace
Forme en V-ing
I mustn't be displacing you mustn't be displacing she mustn't be displacing we mustn't be displacing you mustn't be displacing they mustn't be displacing
Perfect
I mustn't have displaced you mustn't have displaced she mustn't have displaced we mustn't have displaced you mustn't have displaced they mustn't have displaced
Perfect en V-ing
I mustn't have been displacing you mustn't have been displacing she mustn't have been displacing we mustn't have been displacing you mustn't have been displacing they mustn't have been displacing
Forme interrogative
Forme simple
must I displace? must you displace? must she displace? must we displace? must you displace? must they displace?
Forme en V-ing
must I be displacing? must you be displacing? must she be displacing? must we be displacing? must you be displacing? must they be displacing?
Perfect
must I have displaced? must you have displaced? must she have displaced? must we have displaced? must you have displaced? must they have displaced?
Perfect en V-ing
must I have been displacing? must you have been displacing? must she have been displacing? must we have been displacing? must you have been displacing? must they have been displacing?
Forme interro-négative
Forme simple
mustn't I displace? mustn't you displace? mustn't she displace? mustn't we displace? mustn't you displace? mustn't they displace?
Forme en V-ing
mustn't I be displacing? mustn't you be displacing? mustn't she be displacing? mustn't we be displacing? mustn't you be displacing? mustn't they be displacing?
Perfect
mustn't I have displaced? mustn't you have displaced? mustn't she have displaced? mustn't we have displaced? mustn't you have displaced? mustn't they have displaced?
Perfect en V-ing
mustn't I have been displacing? mustn't you have been displacing? mustn't she have been displacing? mustn't we have been displacing? mustn't you have been displacing? mustn't they have been displacing?