Secondary endings are used with the imperfect, conditional, aorist, and optative.
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In Sanskrit, the optative is formed by adding the secondary endings to the verb stem.
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The optative is rare and used only in archaic or poetic constructions.
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Sanskrit verbs have an indicative, an optative and an imperative mood.
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Both optative and imperative have transitive and intransitive paradigms.
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English has no morphological optative, but there are various constructions with optative meaning.
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However, many Indo-European languages lost the optative, or renamed optative forms as subjunctive.
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In Ancient Greek, the optative is used to express wishes and potentiality in independent clauses.
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In Finnish, the optative is archaic, mainly appearing in poetry.
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More examples
Optative mood: a mood (as in Greek or Sanskrit) that expresses a wish or hope; expressed in English by modal verbs
Indicating an option or wish
Relating to a mood of verbs in some languages; "optative verb endings"
The optative mood (abbreviated) is a grammatical mood that indicates a wish or hope. It is similar to the cohortative mood, and closely related to the subjunctive mood.