To make the past tenses of the indicative mood, the vowel (), called an "augment", is prefixed to the verb stem, e.g. aorist () "I freed", imperfect () "I was freeing". This augment is found only in the indicative, not in the other moods or in the infinitive or participle. To make the perfect tense the first consonant is "reduplicated", that is, repeated with the vowel e ( () "I have freed", () "I have written"), or in some cases an augment is used in lieu of reduplication (e.g. () "I have found"). Unlike the augment of past tenses, this reduplication or augment is retained in all the moods of the perfect tense as well as in the perfect infinitive and participle.
