Latin conjugation

Latin verbs have four main patterns of conjugation. As in a number of other languages, most Latin verbs have an active voice and a passive voice. There also exist deponent and semi-deponent Latin verbs (verbs with a passive form but active meaning), as well as defective verbs (verbs with a perfect form but present meaning). Sometimes the verbs of the third conjugation with a present stem on -ǐ (short i) are regarded as a separate pattern of conjugation, and are called the fifth conjugation, or third-io conjugation.

Conjugation is the creation of derived forms of a verb from basic forms, or principal parts. It may be affected by person, number, gender, tense, mood, voice or other language-specific factors.

In a dictionary, Latin verbs are always listed with four "principal parts" (or fewer for deponent and defective verbs) which allow the reader to deduce the other conjugated forms of the verbs. These are: