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