I must strive you must strive he must strive we must strive you must strive they must strive
Forma con V-ing
I must be striving you must be striving he must be striving we must be striving you must be striving they must be striving
Perfetto
I must have striven you must have striven he must have striven we must have striven you must have striven they must have striven
Perfetto con V-ing
I must have been striving you must have been striving he must have been striving we must have been striving you must have been striving they must have been striving
Negazione
Forma semplice
I mustn't strive you mustn't strive he mustn't strive we mustn't strive you mustn't strive they mustn't strive
Forma con V-ing
I mustn't be striving you mustn't be striving he mustn't be striving we mustn't be striving you mustn't be striving they mustn't be striving
Perfetto
I mustn't have striven you mustn't have striven he mustn't have striven we mustn't have striven you mustn't have striven they mustn't have striven
Perfetto con V-ing
I mustn't have been striving you mustn't have been striving he mustn't have been striving we mustn't have been striving you mustn't have been striving they mustn't have been striving
Forma interrogativa
Forma semplice
must I strive? must you strive? must he strive? must we strive? must you strive? must they strive?
Forma con V-ing
must I be striving? must you be striving? must he be striving? must we be striving? must you be striving? must they be striving?
Perfetto
must I have striven? must you have striven? must he have striven? must we have striven? must you have striven? must they have striven?
Perfetto con V-ing
must I have been striving? must you have been striving? must he have been striving? must we have been striving? must you have been striving? must they have been striving?
Forma interro-negativa
Forma semplice
mustn't I strive? mustn't you strive? mustn't he strive? mustn't we strive? mustn't you strive? mustn't they strive?
Forma con V-ing
mustn't I be striving? mustn't you be striving? mustn't he be striving? mustn't we be striving? mustn't you be striving? mustn't they be striving?
Perfetto
mustn't I have striven? mustn't you have striven? mustn't he have striven? mustn't we have striven? mustn't you have striven? mustn't they have striven?
Perfetto con V-ing
mustn't I have been striving? mustn't you have been striving? mustn't he have been striving? mustn't we have been striving? mustn't you have been striving? mustn't they have been striving?