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