I must heighten you must heighten he must heighten we must heighten you must heighten they must heighten
Forme en V-ing
I must be heightening you must be heightening he must be heightening we must be heightening you must be heightening they must be heightening
Perfect
I must have heightened you must have heightened he must have heightened we must have heightened you must have heightened they must have heightened
Perfect en V-ing
I must have been heightening you must have been heightening he must have been heightening we must have been heightening you must have been heightening they must have been heightening
Négation
Forme simple
I must not heighten you must not heighten he must not heighten we must not heighten you must not heighten they must not heighten
Forme en V-ing
I must not be heightening you must not be heightening he must not be heightening we must not be heightening you must not be heightening they must not be heightening
Perfect
I must not have heightened you must not have heightened he must not have heightened we must not have heightened you must not have heightened they must not have heightened
Perfect en V-ing
I must not have been heightening you must not have been heightening he must not have been heightening we must not have been heightening you must not have been heightening they must not have been heightening
Forme interrogative
Forme simple
must I heighten? must you heighten? must he heighten? must we heighten? must you heighten? must they heighten?
Forme en V-ing
must I be heightening? must you be heightening? must he be heightening? must we be heightening? must you be heightening? must they be heightening?
Perfect
must I have heightened? must you have heightened? must he have heightened? must we have heightened? must you have heightened? must they have heightened?
Perfect en V-ing
must I have been heightening? must you have been heightening? must he have been heightening? must we have been heightening? must you have been heightening? must they have been heightening?
Forme interro-négative
Forme simple
must I not heighten? must you not heighten? must he not heighten? must we not heighten? must you not heighten? must they not heighten?
Forme en V-ing
must I not be heightening? must you not be heightening? must he not be heightening? must we not be heightening? must you not be heightening? must they not be heightening?
Perfect
must I not have heightened? must you not have heightened? must he not have heightened? must we not have heightened? must you not have heightened? must they not have heightened?
Perfect en V-ing
must I not have been heightening? must you not have been heightening? must he not have been heightening? must we not have been heightening? must you not have been heightening? must they not have been heightening?