I must skim you must skim he must skim we must skim you must skim they must skim
Forma con V-ing
I must be skimming you must be skimming he must be skimming we must be skimming you must be skimming they must be skimming
Perfetto
I must have skimmed you must have skimmed he must have skimmed we must have skimmed you must have skimmed they must have skimmed
Perfetto con V-ing
I must have been skimming you must have been skimming he must have been skimming we must have been skimming you must have been skimming they must have been skimming
Negazione
Forma semplice
I must not skim you must not skim he must not skim we must not skim you must not skim they must not skim
Forma con V-ing
I must not be skimming you must not be skimming he must not be skimming we must not be skimming you must not be skimming they must not be skimming
Perfetto
I must not have skimmed you must not have skimmed he must not have skimmed we must not have skimmed you must not have skimmed they must not have skimmed
Perfetto con V-ing
I must not have been skimming you must not have been skimming he must not have been skimming we must not have been skimming you must not have been skimming they must not have been skimming
Forma interrogativa
Forma semplice
must I skim? must you skim? must he skim? must we skim? must you skim? must they skim?
Forma con V-ing
must I be skimming? must you be skimming? must he be skimming? must we be skimming? must you be skimming? must they be skimming?
Perfetto
must I have skimmed? must you have skimmed? must he have skimmed? must we have skimmed? must you have skimmed? must they have skimmed?
Perfetto con V-ing
must I have been skimming? must you have been skimming? must he have been skimming? must we have been skimming? must you have been skimming? must they have been skimming?
Forma interro-negativa
Forma semplice
must I not skim? must you not skim? must he not skim? must we not skim? must you not skim? must they not skim?
Forma con V-ing
must I not be skimming? must you not be skimming? must he not be skimming? must we not be skimming? must you not be skimming? must they not be skimming?
Perfetto
must I not have skimmed? must you not have skimmed? must he not have skimmed? must we not have skimmed? must you not have skimmed? must they not have skimmed?
Perfetto con V-ing
must I not have been skimming? must you not have been skimming? must he not have been skimming? must we not have been skimming? must you not have been skimming? must they not have been skimming?