I must require you must require he must require we must require you must require they must require
Forme en V-ing
I must be requiring you must be requiring he must be requiring we must be requiring you must be requiring they must be requiring
Perfect
I must have required you must have required he must have required we must have required you must have required they must have required
Perfect en V-ing
I must have been requiring you must have been requiring he must have been requiring we must have been requiring you must have been requiring they must have been requiring
Négation
Forme simple
I must not require you must not require he must not require we must not require you must not require they must not require
Forme en V-ing
I must not be requiring you must not be requiring he must not be requiring we must not be requiring you must not be requiring they must not be requiring
Perfect
I must not have required you must not have required he must not have required we must not have required you must not have required they must not have required
Perfect en V-ing
I must not have been requiring you must not have been requiring he must not have been requiring we must not have been requiring you must not have been requiring they must not have been requiring
Forme interrogative
Forme simple
must I require? must you require? must he require? must we require? must you require? must they require?
Forme en V-ing
must I be requiring? must you be requiring? must he be requiring? must we be requiring? must you be requiring? must they be requiring?
Perfect
must I have required? must you have required? must he have required? must we have required? must you have required? must they have required?
Perfect en V-ing
must I have been requiring? must you have been requiring? must he have been requiring? must we have been requiring? must you have been requiring? must they have been requiring?
Forme interro-négative
Forme simple
must I not require? must you not require? must he not require? must we not require? must you not require? must they not require?
Forme en V-ing
must I not be requiring? must you not be requiring? must he not be requiring? must we not be requiring? must you not be requiring? must they not be requiring?
Perfect
must I not have required? must you not have required? must he not have required? must we not have required? must you not have required? must they not have required?
Perfect en V-ing
must I not have been requiring? must you not have been requiring? must he not have been requiring? must we not have been requiring? must you not have been requiring? must they not have been requiring?