I must procrastinate you must procrastinate he must procrastinate we must procrastinate you must procrastinate they must procrastinate
V-ing form
I must be procrastinating you must be procrastinating he must be procrastinating we must be procrastinating you must be procrastinating they must be procrastinating
Perfect
I must have procrastinated you must have procrastinated he must have procrastinated we must have procrastinated you must have procrastinated they must have procrastinated
V-ing perfect
I must have been procrastinating you must have been procrastinating he must have been procrastinating we must have been procrastinating you must have been procrastinating they must have been procrastinating
Negation
Simple form
I mustn't procrastinate you mustn't procrastinate he mustn't procrastinate we mustn't procrastinate you mustn't procrastinate they mustn't procrastinate
V-ing form
I mustn't be procrastinating you mustn't be procrastinating he mustn't be procrastinating we mustn't be procrastinating you mustn't be procrastinating they mustn't be procrastinating
Perfect
I mustn't have procrastinated you mustn't have procrastinated he mustn't have procrastinated we mustn't have procrastinated you mustn't have procrastinated they mustn't have procrastinated
V-ing perfect
I mustn't have been procrastinating you mustn't have been procrastinating he mustn't have been procrastinating we mustn't have been procrastinating you mustn't have been procrastinating they mustn't have been procrastinating
Interrogative form
Simple form
must I procrastinate? must you procrastinate? must he procrastinate? must we procrastinate? must you procrastinate? must they procrastinate?
V-ing form
must I be procrastinating? must you be procrastinating? must he be procrastinating? must we be procrastinating? must you be procrastinating? must they be procrastinating?
Perfect
must I have procrastinated? must you have procrastinated? must he have procrastinated? must we have procrastinated? must you have procrastinated? must they have procrastinated?
V-ing perfect
must I have been procrastinating? must you have been procrastinating? must he have been procrastinating? must we have been procrastinating? must you have been procrastinating? must they have been procrastinating?
Interro-negative form
Simple form
mustn't I procrastinate? mustn't you procrastinate? mustn't he procrastinate? mustn't we procrastinate? mustn't you procrastinate? mustn't they procrastinate?
V-ing form
mustn't I be procrastinating? mustn't you be procrastinating? mustn't he be procrastinating? mustn't we be procrastinating? mustn't you be procrastinating? mustn't they be procrastinating?
Perfect
mustn't I have procrastinated? mustn't you have procrastinated? mustn't he have procrastinated? mustn't we have procrastinated? mustn't you have procrastinated? mustn't they have procrastinated?
V-ing perfect
mustn't I have been procrastinating? mustn't you have been procrastinating? mustn't he have been procrastinating? mustn't we have been procrastinating? mustn't you have been procrastinating? mustn't they have been procrastinating?