I must degrease you must degrease he must degrease we must degrease you must degrease they must degrease
Forme en V-ing
I must be degreasing you must be degreasing he must be degreasing we must be degreasing you must be degreasing they must be degreasing
Perfect
I must have degreased you must have degreased he must have degreased we must have degreased you must have degreased they must have degreased
Perfect en V-ing
I must have been degreasing you must have been degreasing he must have been degreasing we must have been degreasing you must have been degreasing they must have been degreasing
Négation
Forme simple
I must not degrease you must not degrease he must not degrease we must not degrease you must not degrease they must not degrease
Forme en V-ing
I must not be degreasing you must not be degreasing he must not be degreasing we must not be degreasing you must not be degreasing they must not be degreasing
Perfect
I must not have degreased you must not have degreased he must not have degreased we must not have degreased you must not have degreased they must not have degreased
Perfect en V-ing
I must not have been degreasing you must not have been degreasing he must not have been degreasing we must not have been degreasing you must not have been degreasing they must not have been degreasing
Forme interrogative
Forme simple
must I degrease? must you degrease? must he degrease? must we degrease? must you degrease? must they degrease?
Forme en V-ing
must I be degreasing? must you be degreasing? must he be degreasing? must we be degreasing? must you be degreasing? must they be degreasing?
Perfect
must I have degreased? must you have degreased? must he have degreased? must we have degreased? must you have degreased? must they have degreased?
Perfect en V-ing
must I have been degreasing? must you have been degreasing? must he have been degreasing? must we have been degreasing? must you have been degreasing? must they have been degreasing?
Forme interro-négative
Forme simple
must I not degrease? must you not degrease? must he not degrease? must we not degrease? must you not degrease? must they not degrease?
Forme en V-ing
must I not be degreasing? must you not be degreasing? must he not be degreasing? must we not be degreasing? must you not be degreasing? must they not be degreasing?
Perfect
must I not have degreased? must you not have degreased? must he not have degreased? must we not have degreased? must you not have degreased? must they not have degreased?
Perfect en V-ing
must I not have been degreasing? must you not have been degreasing? must he not have been degreasing? must we not have been degreasing? must you not have been degreasing? must they not have been degreasing?