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undergo – subir

Infinitiv

undergo

Passé

underwent

Participe passé

undergone

  Past Past cont. Present Perfect Present Perfect cont. Past Perfect Past Perfect cont.
I underwent was undergoing have undergone have been undergoing had undergone had been undergoing
You underwent were undergoing have undergone have been undergoing had undergone had been undergoing
He/she underwent was undergoing has undergone has been undergoing had undergone had been undergoing
We underwent were undergoing have undergone have been undergoing had undergone had been undergoing
You underwent were undergoing have undergone have been undergoing had undergone had been undergoing
They underwent were undergoing have undergone have been undergoing had undergone had been undergoing