Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Afirmação
Forma simple
I must freer you must freer she must freer we must freer you must freer they must freer
Forma com V-ing
I must be freering you must be freering she must be freering we must be freering you must be freering they must be freering
Perfeito
I must have freered you must have freered she must have freered we must have freered you must have freered they must have freered
Perfeito com V-ing
I must have been freering you must have been freering she must have been freering we must have been freering you must have been freering they must have been freering
Negação
Forma simple
I mustn't freer you mustn't freer she mustn't freer we mustn't freer you mustn't freer they mustn't freer
Forma com V-ing
I mustn't be freering you mustn't be freering she mustn't be freering we mustn't be freering you mustn't be freering they mustn't be freering
Perfeito
I mustn't have freered you mustn't have freered she mustn't have freered we mustn't have freered you mustn't have freered they mustn't have freered
Perfeito com V-ing
I mustn't have been freering you mustn't have been freering she mustn't have been freering we mustn't have been freering you mustn't have been freering they mustn't have been freering
Forma interrogativa
Forma simple
must I freer? must you freer? must she freer? must we freer? must you freer? must they freer?
Forma com V-ing
must I be freering? must you be freering? must she be freering? must we be freering? must you be freering? must they be freering?
Perfeito
must I have freered? must you have freered? must she have freered? must we have freered? must you have freered? must they have freered?
Perfeito com V-ing
must I have been freering? must you have been freering? must she have been freering? must we have been freering? must you have been freering? must they have been freering?
Forma interro-Negação
Forma simple
mustn't I freer? mustn't you freer? mustn't she freer? mustn't we freer? mustn't you freer? mustn't they freer?
Forma com V-ing
mustn't I be freering? mustn't you be freering? mustn't she be freering? mustn't we be freering? mustn't you be freering? mustn't they be freering?
Perfeito
mustn't I have freered? mustn't you have freered? mustn't she have freered? mustn't we have freered? mustn't you have freered? mustn't they have freered?
Perfeito com V-ing
mustn't I have been freering? mustn't you have been freering? mustn't she have been freering? mustn't we have been freering? mustn't you have been freering? mustn't they have been freering?