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