I must compost you must compost he must compost we must compost you must compost they must compost
Forme en V-ing
I must be composting you must be composting he must be composting we must be composting you must be composting they must be composting
Perfect
I must have composted you must have composted he must have composted we must have composted you must have composted they must have composted
Perfect en V-ing
I must have been composting you must have been composting he must have been composting we must have been composting you must have been composting they must have been composting
Négation
Forme simple
I mustn't compost you mustn't compost he mustn't compost we mustn't compost you mustn't compost they mustn't compost
Forme en V-ing
I mustn't be composting you mustn't be composting he mustn't be composting we mustn't be composting you mustn't be composting they mustn't be composting
Perfect
I mustn't have composted you mustn't have composted he mustn't have composted we mustn't have composted you mustn't have composted they mustn't have composted
Perfect en V-ing
I mustn't have been composting you mustn't have been composting he mustn't have been composting we mustn't have been composting you mustn't have been composting they mustn't have been composting
Forme interrogative
Forme simple
must I compost? must you compost? must he compost? must we compost? must you compost? must they compost?
Forme en V-ing
must I be composting? must you be composting? must he be composting? must we be composting? must you be composting? must they be composting?
Perfect
must I have composted? must you have composted? must he have composted? must we have composted? must you have composted? must they have composted?
Perfect en V-ing
must I have been composting? must you have been composting? must he have been composting? must we have been composting? must you have been composting? must they have been composting?
Forme interro-négative
Forme simple
mustn't I compost? mustn't you compost? mustn't he compost? mustn't we compost? mustn't you compost? mustn't they compost?
Forme en V-ing
mustn't I be composting? mustn't you be composting? mustn't he be composting? mustn't we be composting? mustn't you be composting? mustn't they be composting?
Perfect
mustn't I have composted? mustn't you have composted? mustn't he have composted? mustn't we have composted? mustn't you have composted? mustn't they have composted?
Perfect en V-ing
mustn't I have been composting? mustn't you have been composting? mustn't he have been composting? mustn't we have been composting? mustn't you have been composting? mustn't they have been composting?