I must heighten you must heighten she must heighten we must heighten you must heighten they must heighten
Forme en V-ing
I must be heightening you must be heightening she must be heightening we must be heightening you must be heightening they must be heightening
Perfect
I must have heightened you must have heightened she 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 she must have been heightening we must have been heightening you must have been heightening they must have been heightening
Négation
Forme simple
I mustn't heighten you mustn't heighten she mustn't heighten we mustn't heighten you mustn't heighten they mustn't heighten
Forme en V-ing
I mustn't be heightening you mustn't be heightening she mustn't be heightening we mustn't be heightening you mustn't be heightening they mustn't be heightening
Perfect
I mustn't have heightened you mustn't have heightened she mustn't have heightened we mustn't have heightened you mustn't have heightened they mustn't have heightened
Perfect en V-ing
I mustn't have been heightening you mustn't have been heightening she mustn't have been heightening we mustn't have been heightening you mustn't have been heightening they mustn't have been heightening
Forme interrogative
Forme simple
must I heighten? must you heighten? must she heighten? must we heighten? must you heighten? must they heighten?
Forme en V-ing
must I be heightening? must you be heightening? must she be heightening? must we be heightening? must you be heightening? must they be heightening?
Perfect
must I have heightened? must you have heightened? must she 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 she have been heightening? must we have been heightening? must you have been heightening? must they have been heightening?
Forme interro-négative
Forme simple
mustn't I heighten? mustn't you heighten? mustn't she heighten? mustn't we heighten? mustn't you heighten? mustn't they heighten?
Forme en V-ing
mustn't I be heightening? mustn't you be heightening? mustn't she be heightening? mustn't we be heightening? mustn't you be heightening? mustn't they be heightening?
Perfect
mustn't I have heightened? mustn't you have heightened? mustn't she have heightened? mustn't we have heightened? mustn't you have heightened? mustn't they have heightened?
Perfect en V-ing
mustn't I have been heightening? mustn't you have been heightening? mustn't she have been heightening? mustn't we have been heightening? mustn't you have been heightening? mustn't they have been heightening?