I must flatten you must flatten she must flatten we must flatten you must flatten they must flatten
Forme en V-ing
I must be flattening you must be flattening she must be flattening we must be flattening you must be flattening they must be flattening
Perfect
I must have flattened you must have flattened she must have flattened we must have flattened you must have flattened they must have flattened
Perfect en V-ing
I must have been flattening you must have been flattening she must have been flattening we must have been flattening you must have been flattening they must have been flattening
Négation
Forme simple
I must not flatten you must not flatten she must not flatten we must not flatten you must not flatten they must not flatten
Forme en V-ing
I must not be flattening you must not be flattening she must not be flattening we must not be flattening you must not be flattening they must not be flattening
Perfect
I must not have flattened you must not have flattened she must not have flattened we must not have flattened you must not have flattened they must not have flattened
Perfect en V-ing
I must not have been flattening you must not have been flattening she must not have been flattening we must not have been flattening you must not have been flattening they must not have been flattening
Forme interrogative
Forme simple
must I flatten? must you flatten? must she flatten? must we flatten? must you flatten? must they flatten?
Forme en V-ing
must I be flattening? must you be flattening? must she be flattening? must we be flattening? must you be flattening? must they be flattening?
Perfect
must I have flattened? must you have flattened? must she have flattened? must we have flattened? must you have flattened? must they have flattened?
Perfect en V-ing
must I have been flattening? must you have been flattening? must she have been flattening? must we have been flattening? must you have been flattening? must they have been flattening?
Forme interro-négative
Forme simple
must I not flatten? must you not flatten? must she not flatten? must we not flatten? must you not flatten? must they not flatten?
Forme en V-ing
must I not be flattening? must you not be flattening? must she not be flattening? must we not be flattening? must you not be flattening? must they not be flattening?
Perfect
must I not have flattened? must you not have flattened? must she not have flattened? must we not have flattened? must you not have flattened? must they not have flattened?
Perfect en V-ing
must I not have been flattening? must you not have been flattening? must she not have been flattening? must we not have been flattening? must you not have been flattening? must they not have been flattening?