Coniugazione del verbo inglese
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Verbo regolare: practice - practiced - practiced

Affermazione

Forma semplice	Forma con V-ing
I must practice you must practice she must practice we must practice you must practice they must practice	I must be practicing you must be practicing she must be practicing we must be practicing you must be practicing they must be practicing
Perfetto	Perfetto con V-ing
I must have practiced you must have practiced she must have practiced we must have practiced you must have practiced they must have practiced	I must have been practicing you must have been practicing she must have been practicing we must have been practicing you must have been practicing they must have been practicing

Negazione

Forma semplice	Forma con V-ing
I mustn't practice you mustn't practice she mustn't practice we mustn't practice you mustn't practice they mustn't practice	I mustn't be practicing you mustn't be practicing she mustn't be practicing we mustn't be practicing you mustn't be practicing they mustn't be practicing
Perfetto	Perfetto con V-ing
I mustn't have practiced you mustn't have practiced she mustn't have practiced we mustn't have practiced you mustn't have practiced they mustn't have practiced	I mustn't have been practicing you mustn't have been practicing she mustn't have been practicing we mustn't have been practicing you mustn't have been practicing they mustn't have been practicing

Forma interrogativa

Forma semplice	Forma con V-ing
must I practice? must you practice? must she practice? must we practice? must you practice? must they practice?	must I be practicing? must you be practicing? must she be practicing? must we be practicing? must you be practicing? must they be practicing?
Perfetto	Perfetto con V-ing
must I have practiced? must you have practiced? must she have practiced? must we have practiced? must you have practiced? must they have practiced?	must I have been practicing? must you have been practicing? must she have been practicing? must we have been practicing? must you have been practicing? must they have been practicing?

Forma interro-negativa

Forma semplice	Forma con V-ing
mustn't I practice? mustn't you practice? mustn't she practice? mustn't we practice? mustn't you practice? mustn't they practice?	mustn't I be practicing? mustn't you be practicing? mustn't she be practicing? mustn't we be practicing? mustn't you be practicing? mustn't they be practicing?
Perfetto	Perfetto con V-ing
mustn't I have practiced? mustn't you have practiced? mustn't she have practiced? mustn't we have practiced? mustn't you have practiced? mustn't they have practiced?	mustn't I have been practicing? mustn't you have been practicing? mustn't she have been practicing? mustn't we have been practicing? mustn't you have been practicing? mustn't they have been practicing?