I must dilly-dally you must dilly-dally he must dilly-dally we must dilly-dally you must dilly-dally they must dilly-dally
V-ing form
I must be dilly-dallying you must be dilly-dallying he must be dilly-dallying we must be dilly-dallying you must be dilly-dallying they must be dilly-dallying
Perfect
I must have dilly-dallied you must have dilly-dallied he must have dilly-dallied we must have dilly-dallied you must have dilly-dallied they must have dilly-dallied
V-ing perfect
I must have been dilly-dallying you must have been dilly-dallying he must have been dilly-dallying we must have been dilly-dallying you must have been dilly-dallying they must have been dilly-dallying
Negation
Simple form
I must not dilly-dally you must not dilly-dally he must not dilly-dally we must not dilly-dally you must not dilly-dally they must not dilly-dally
V-ing form
I must not be dilly-dallying you must not be dilly-dallying he must not be dilly-dallying we must not be dilly-dallying you must not be dilly-dallying they must not be dilly-dallying
Perfect
I must not have dilly-dallied you must not have dilly-dallied he must not have dilly-dallied we must not have dilly-dallied you must not have dilly-dallied they must not have dilly-dallied
V-ing perfect
I must not have been dilly-dallying you must not have been dilly-dallying he must not have been dilly-dallying we must not have been dilly-dallying you must not have been dilly-dallying they must not have been dilly-dallying
Interrogative form
Simple form
must I dilly-dally? must you dilly-dally? must he dilly-dally? must we dilly-dally? must you dilly-dally? must they dilly-dally?
V-ing form
must I be dilly-dallying? must you be dilly-dallying? must he be dilly-dallying? must we be dilly-dallying? must you be dilly-dallying? must they be dilly-dallying?
Perfect
must I have dilly-dallied? must you have dilly-dallied? must he have dilly-dallied? must we have dilly-dallied? must you have dilly-dallied? must they have dilly-dallied?
V-ing perfect
must I have been dilly-dallying? must you have been dilly-dallying? must he have been dilly-dallying? must we have been dilly-dallying? must you have been dilly-dallying? must they have been dilly-dallying?
Interro-negative form
Simple form
must I not dilly-dally? must you not dilly-dally? must he not dilly-dally? must we not dilly-dally? must you not dilly-dally? must they not dilly-dally?
V-ing form
must I not be dilly-dallying? must you not be dilly-dallying? must he not be dilly-dallying? must we not be dilly-dallying? must you not be dilly-dallying? must they not be dilly-dallying?
Perfect
must I not have dilly-dallied? must you not have dilly-dallied? must he not have dilly-dallied? must we not have dilly-dallied? must you not have dilly-dallied? must they not have dilly-dallied?
V-ing perfect
must I not have been dilly-dallying? must you not have been dilly-dallying? must he not have been dilly-dallying? must we not have been dilly-dallying? must you not have been dilly-dallying? must they not have been dilly-dallying?