Coniugazione del verbo inglese MUST HAPPEN
Verbo regolare: happen - happened - happened
Affermazione
Forma semplice
-
-
it
must happen
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Forma con V-ing
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it
must be happen
ing-
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Perfetto
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-
it
must have happen
ed-
-
-
Perfetto con V-ing
-
-
it
must have been happen
ing-
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Negazione
Forma semplice
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-
it
must not happen
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-
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Forma con V-ing
-
-
it
must not be happen
ing-
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Perfetto
-
-
it
must not have happen
ed-
-
-
Perfetto con V-ing
-
-
it
must not have been happen
ing-
-
-
Forma interrogativa
Forma semplice
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-
must it happen?
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-
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Forma con V-ing
-
-
must it be happen
ing?
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Perfetto
-
-
must it have happen
ed?
-
-
-
Perfetto con V-ing
-
-
must it have been happen
ing?
-
-
-
Forma interro-negativa
Forma semplice
-
-
must it not happen?
-
-
-
Forma con V-ing
-
-
must it not be happen
ing?
-
-
-
Perfetto
-
-
must it not have happen
ed?
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-
-
Perfetto con V-ing
-
-
must it not have been happen
ing?
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