In OE 9 parts of speech had already been distinguished:
| changeable | 1. Noun | Nominal Categories: Number, Case, Gender, Degrees of Comparison, Determination |
| 2. Adjective | ||
| 3. Pronoun | ||
| 4. Numeral | ||
| 5. Verb | Verbal Categories: Tense, Mood, Person, Number, Voice, Aspect, Order, Posteriority | |
| unchangeable | 6. Adverb (only Degrees of Comparison) | - |
| 7. Prepositions | - | |
| 8. Conjunctions | - | |
| 9. Interjections | - |
Below all notional parts of speech will be discussed, their categories described and the meanings of these categories stated as related to the Old English Period
Noun
Number – Singular (Sg) and Plural (Pl).
Gender – Masculine (M), Feminine (F), Neuter (N).
Case – Nominative (Nom) (agent), Genitive (Gen) (attribute), Dative (Dat) (instrument, indirect/prepositional object), Accusative (Acc) (recipient, direct/prepositionless object).