The subjunctive mood derives from the PIE optative mood. These prefixes convey imperfective, perfective and optative aspect. Also, there is no imperfect subjunctive, optative or imperative. Some examples of moods are indicative, interrogative, imperative, subjunctive, injunctive, optative, and potential. The moods of PIE included indicative, imperative, subjunctive, optative and perhaps injunctive. As well as the indicative mood, Ancient Greek had an imperative, subjunctive, and optative mood. There were three moods&colon; indicative, subjunctive (developed from the PIE optative mood) and imperative. The subjunctive (sometimes referred to as an optative) expresses hypothetical situations, wishes and requests. The original Indo-European inventory of moods consisted of indicative, subjunctive, optative, and imperative. Secondary endings are used with the imperfect, conditional, aorist, and optative. Early Indo-Iranian texts mostly lack attestations of stative optative forms. Likewise in Latin, the newer subjunctive is based on the Indo-European optative. The four independent moods are&colon; indicative, interrogative, imperative, optative. Both optative and imperative have transitive and intransitive paradigms. Sanskrit verbs have an indicative, an optative and an imperative mood.