I must summer you must summer she must summer we must summer you must summer they must summer
Forme en V-ing
I must be summering you must be summering she must be summering we must be summering you must be summering they must be summering
Perfect
I must have summered you must have summered she must have summered we must have summered you must have summered they must have summered
Perfect en V-ing
I must have been summering you must have been summering she must have been summering we must have been summering you must have been summering they must have been summering
Négation
Forme simple
I must not summer you must not summer she must not summer we must not summer you must not summer they must not summer
Forme en V-ing
I must not be summering you must not be summering she must not be summering we must not be summering you must not be summering they must not be summering
Perfect
I must not have summered you must not have summered she must not have summered we must not have summered you must not have summered they must not have summered
Perfect en V-ing
I must not have been summering you must not have been summering she must not have been summering we must not have been summering you must not have been summering they must not have been summering
Forme interrogative
Forme simple
must I summer? must you summer? must she summer? must we summer? must you summer? must they summer?
Forme en V-ing
must I be summering? must you be summering? must she be summering? must we be summering? must you be summering? must they be summering?
Perfect
must I have summered? must you have summered? must she have summered? must we have summered? must you have summered? must they have summered?
Perfect en V-ing
must I have been summering? must you have been summering? must she have been summering? must we have been summering? must you have been summering? must they have been summering?
Forme interro-négative
Forme simple
must I not summer? must you not summer? must she not summer? must we not summer? must you not summer? must they not summer?
Forme en V-ing
must I not be summering? must you not be summering? must she not be summering? must we not be summering? must you not be summering? must they not be summering?
Perfect
must I not have summered? must you not have summered? must she not have summered? must we not have summered? must you not have summered? must they not have summered?
Perfect en V-ing
must I not have been summering? must you not have been summering? must she not have been summering? must we not have been summering? must you not have been summering? must they not have been summering?