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