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