Editing Old Church Slavonic (section)

==Grammar==
{{main|Old Church Slavonic grammar}}
As an ancient Indo-European language, OCS has a highly inflective morphology. Inflected forms are divided in two groups, nominals and verbs. Nominals are further divided into nouns, adjectives and pronouns. Numerals inflect either as nouns or pronouns, with 1–4 showing gender agreement as well.

Nominals can be declined in three [[grammatical gender]]s (masculine, feminine, neuter), three numbers (singular, plural, [[dual grammatical number|dual]]) and seven [[grammatical case|cases]]: [[nominative case|nominative]], [[vocative case|vocative]], [[accusative case|accusative]], [[instrumental case|instrumental]], [[dative case|dative]], [[genitive case|genitive]], and [[locative case|locative]]. There are five basic inflectional classes for nouns: ''o/jo''-stems, ''a/ja''-stems, ''i''-stems, ''u''-stems, and consonant stems. Forms throughout the inflectional paradigm usually exhibit morphophonemic alternations.

Fronting of vowels after palatals and ''j'' yielded dual inflectional class ''o'' : ''jo'' and ''a'' : ''ja'', whereas palatalizations affected stem as a synchronic process (N sg. ''vlьkъ'', V sg. ''vlьče''; L sg. ''vlьcě''). Productive classes are ''o/jo-'', ''a/ja-'', and ''i''-stems. Sample paradigms are given in the table below:

{| class="wikitable"
|+Sample declensional classes for nouns
! colspan="2" |
! colspan="7" | Singular
! colspan="3" | Dual
! colspan="6" | Plural
|-
!Gloss
!Stem type
!Nom
!Voc
!Acc
!Gen
!Loc
!Dat
!Instr
!Nom/Voc/Acc
!Gen/Loc
!Dat/Instr
!Nom/Voc
!Acc
!Gen
!Loc
!Dat
!Instr
|-
|"city"
|o ''m.''
|gradъ
|grade
|gradъ
|grada
|gradě
|gradu
|gradomь
|grada
|gradu
|gradoma
|gradi
|grady
|gradъ
|graděxъ
|gradomъ
|grady
|-
|"knife"
|jo ''m.''
|nožь
|nožu
|nožь
|noža
|noži
|nožu
|nožemь
|noža
|nožu
|nožema
|noži
|nožę
|nožь
|nožixъ
|nožemъ
|noži
|-
|"wolf"
|o ''m''
|vlьkъ
|vlьče
|vlьkъ
|vlьka
|vlьcě
|vlьku
|vlьkomь
|vlьka
|vlьku
|vlьkoma
|vlьci
|vlьky
|vlьkъ
|vlьcěxъ
|vlьkomъ
|vlьky
|-
|"wine"
|o ''n.''
|vino
|vino
|vino
|vina
|vině
|vinu
|vinomь
|vině
|vinu
|vinoma
|vina
|vina
|vinъ
|viněxъ
|vinomъ
|viny
|-
|"field"
|jo ''n.''
|poʎe
|poʎe
|poʎe
|poʎa
|poʎi
|poʎu
|poʎemь
|poʎi
|poʎu
|poʎema
|poʎa
|poʎa
|poʎь
|poʎixъ
|poʎemъ
|poʎi
|-
|"woman"
|a ''f.''
|žena
|ženo
|ženǫ
|ženy
|ženě
|ženě
|ženojǫ
|ženě
|ženu
|ženama
|ženy
|ženy
|ženъ
|ženaxъ
|ženamъ
|ženami
|-
|"soul"
|ja ''f.''
|duša
|duše
|dušǫ
|dušę
|duši
|duši
|dušejǫ
|duši
|dušu
|dušama
|dušę
|dušę
|dušь
|dušaxъ
|dušamъ
|dušami
|-
|"hand"
|a ''f.''
|rǫka
|rǫko
|rǫkǫ
|rǫky
|rǫcě
|rǫcě
|rǫkojǫ
|rǫcě
|rǫku
|rǫkama
|rǫky
|rǫky
|rǫkъ
|rǫkaxъ
|rǫkamъ
|rǫkami
|-
|"bone"
|i ''f.''
|kostь
|kosti
|kostь
|kosti
|kosti
|kosti
|kostьjǫ
|kosti
|kostьju
|kostьma
|kosti
|kosti
|kostьjь
|kostьxъ
|kostьmъ
|kostьmi
|-
|"home"
|u ''m.''
|domъ
|domu
|domъ/-a
|domu
|domu
|domovi
|domъmь
|domy
|domovu
|domъma
|domove
|domy
|domovъ
|domъxъ
|domъmъ
|domъmi
|}

Adjectives are inflected as ''o/jo''-stems (masculine and neuter) and ''a/ja''-stems (feminine), in three genders. They could have short (indefinite) or long (definite) variants, the latter being formed by suffixing to the indefinite form the anaphoric third-person pronoun ''jь''.

[[Synthetic language|Synthetic]] verbal conjugation is expressed in present, aorist and imperfect tenses while perfect, pluperfect, future and conditional tenses/moods are made by combining auxiliary verbs with participles or synthetic tense forms. Sample conjugation for the verb ''vesti'' "to lead" (underlyingly ''ved-ti'') is given in the table below.

{| class="wikitable"
|+Sample conjugation of the verb ''vesti'' "to lead"
|-
!person/number
!Present
!Asigmatic (simple, root) aorist
!Sigmatic (s-) aorist
!New (ox) aorist
!Imperfect
!Imperative
|-
|1 sg.
|vedǫ
|vedъ
|věsъ
|vedoxъ
|veděaxъ
|
|-
|2 sg.
|vedeši
|vede
|vede
|vede
|veděaše
|vedi
|-
|3 sg.
|vedetъ
|vede
|vede
|vede
|veděaše
|vedi
|-
|1 dual
|vedevě
|vedově
|věsově
|vedoxově
|veděaxově
|veděvě
|-
|2 dual
|vedeta
|vedeta
|věsta
|vedosta
|veděašeta
|veděta
|-
|3 dual
|vedete
|vedete
|věste
|vedoste
|veděašete
|
|-
|1 plural
|vedemъ
|vedomъ
|věsomъ
|vedoxomъ
|veděaxomъ
|veděmъ
|-
|2 plural
|vedete
|vedete
|věste
|vedoste
|veděašete
|veděte
|-
|3 plural
|vedǫtъ
|vedǫ
|věsę
|vedošę
|veděaxǫ
|
|}