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