I must secrete you must secrete she must secrete we must secrete you must secrete they must secrete
Forme en V-ing
I must be secreting you must be secreting she must be secreting we must be secreting you must be secreting they must be secreting
Perfect
I must have secreted you must have secreted she must have secreted we must have secreted you must have secreted they must have secreted
Perfect en V-ing
I must have been secreting you must have been secreting she must have been secreting we must have been secreting you must have been secreting they must have been secreting
Négation
Forme simple
I must not secrete you must not secrete she must not secrete we must not secrete you must not secrete they must not secrete
Forme en V-ing
I must not be secreting you must not be secreting she must not be secreting we must not be secreting you must not be secreting they must not be secreting
Perfect
I must not have secreted you must not have secreted she must not have secreted we must not have secreted you must not have secreted they must not have secreted
Perfect en V-ing
I must not have been secreting you must not have been secreting she must not have been secreting we must not have been secreting you must not have been secreting they must not have been secreting
Forme interrogative
Forme simple
must I secrete? must you secrete? must she secrete? must we secrete? must you secrete? must they secrete?
Forme en V-ing
must I be secreting? must you be secreting? must she be secreting? must we be secreting? must you be secreting? must they be secreting?
Perfect
must I have secreted? must you have secreted? must she have secreted? must we have secreted? must you have secreted? must they have secreted?
Perfect en V-ing
must I have been secreting? must you have been secreting? must she have been secreting? must we have been secreting? must you have been secreting? must they have been secreting?
Forme interro-négative
Forme simple
must I not secrete? must you not secrete? must she not secrete? must we not secrete? must you not secrete? must they not secrete?
Forme en V-ing
must I not be secreting? must you not be secreting? must she not be secreting? must we not be secreting? must you not be secreting? must they not be secreting?
Perfect
must I not have secreted? must you not have secreted? must she not have secreted? must we not have secreted? must you not have secreted? must they not have secreted?
Perfect en V-ing
must I not have been secreting? must you not have been secreting? must she not have been secreting? must we not have been secreting? must you not have been secreting? must they not have been secreting?