Present Passive
INFINITIVE
Change are ari ēre ēri ere i īre iri (same time action) to be taught
Present Active
INFINITIVE
2nd principle part
(same time action)
to teach
Perfect Active
INFINITIVE
3rd principle part + isse
prior action
to have taught
Perfect Passive
INFINITIVE
4th principle part and esse(optional)
to have been taught
Future Active
INFINITIVE
4th principle part w/-ur-
(tractaturus)
to be about to teach
Future Passive
INFINITIVE
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