I must annul you must annul she must annul we must annul you must annul they must annul
V-ing form
I must be annulling you must be annulling she must be annulling we must be annulling you must be annulling they must be annulling
Perfect
I must have annulled you must have annulled she must have annulled we must have annulled you must have annulled they must have annulled
V-ing perfect
I must have been annulling you must have been annulling she must have been annulling we must have been annulling you must have been annulling they must have been annulling
Negation
Simple form
I mustn't annul you mustn't annul she mustn't annul we mustn't annul you mustn't annul they mustn't annul
V-ing form
I mustn't be annulling you mustn't be annulling she mustn't be annulling we mustn't be annulling you mustn't be annulling they mustn't be annulling
Perfect
I mustn't have annulled you mustn't have annulled she mustn't have annulled we mustn't have annulled you mustn't have annulled they mustn't have annulled
V-ing perfect
I mustn't have been annulling you mustn't have been annulling she mustn't have been annulling we mustn't have been annulling you mustn't have been annulling they mustn't have been annulling
Interrogative form
Simple form
must I annul? must you annul? must she annul? must we annul? must you annul? must they annul?
V-ing form
must I be annulling? must you be annulling? must she be annulling? must we be annulling? must you be annulling? must they be annulling?
Perfect
must I have annulled? must you have annulled? must she have annulled? must we have annulled? must you have annulled? must they have annulled?
V-ing perfect
must I have been annulling? must you have been annulling? must she have been annulling? must we have been annulling? must you have been annulling? must they have been annulling?
Interro-negative form
Simple form
mustn't I annul? mustn't you annul? mustn't she annul? mustn't we annul? mustn't you annul? mustn't they annul?
V-ing form
mustn't I be annulling? mustn't you be annulling? mustn't she be annulling? mustn't we be annulling? mustn't you be annulling? mustn't they be annulling?
Perfect
mustn't I have annulled? mustn't you have annulled? mustn't she have annulled? mustn't we have annulled? mustn't you have annulled? mustn't they have annulled?
V-ing perfect
mustn't I have been annulling? mustn't you have been annulling? mustn't she have been annulling? mustn't we have been annulling? mustn't you have been annulling? mustn't they have been annulling?