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