Coniugazione del verbo inglese
MUST ERR

Verbo regolare: err - erred - erred

Affermazione

Forma semplice	Forma con V-ing
I must err you must err he must err we must err you must err they must err	I must be erring you must be erring he must be erring we must be erring you must be erring they must be erring
Perfetto	Perfetto con V-ing
I must have erred you must have erred he must have erred we must have erred you must have erred they must have erred	I must have been erring you must have been erring he must have been erring we must have been erring you must have been erring they must have been erring

Negazione

Forma semplice	Forma con V-ing
I must not err you must not err he must not err we must not err you must not err they must not err	I must not be erring you must not be erring he must not be erring we must not be erring you must not be erring they must not be erring
Perfetto	Perfetto con V-ing
I must not have erred you must not have erred he must not have erred we must not have erred you must not have erred they must not have erred	I must not have been erring you must not have been erring he must not have been erring we must not have been erring you must not have been erring they must not have been erring

Forma interrogativa

Forma semplice	Forma con V-ing
must I err? must you err? must he err? must we err? must you err? must they err?	must I be erring? must you be erring? must he be erring? must we be erring? must you be erring? must they be erring?
Perfetto	Perfetto con V-ing
must I have erred? must you have erred? must he have erred? must we have erred? must you have erred? must they have erred?	must I have been erring? must you have been erring? must he have been erring? must we have been erring? must you have been erring? must they have been erring?

Forma interro-negativa

Forma semplice	Forma con V-ing
must I not err? must you not err? must he not err? must we not err? must you not err? must they not err?	must I not be erring? must you not be erring? must he not be erring? must we not be erring? must you not be erring? must they not be erring?
Perfetto	Perfetto con V-ing
must I not have erred? must you not have erred? must he not have erred? must we not have erred? must you not have erred? must they not have erred?	must I not have been erring? must you not have been erring? must he not have been erring? must we not have been erring? must you not have been erring? must they not have been erring?