Modern Greek grammar, aspect and language reflection
Modern Greek forms belong to a modern system
Modern Greek grammar must not be replaced by the paradigms of Ancient Greek. Nouns and their associated articles and adjectives express gender, number and case. Ordinary school analysis distinguishes nominative, genitive, accusative and vocative; there is no productive ordinary dative paradigm corresponding to the ancient one. Fixed or learned expressions do not make every ancient construction a current everyday rule.
Learn noun phrases with their articles: ο μαθητής, η μαθήτρια, το βιβλίο. Identify the sentence function before choosing an ending. Direct address can use the vocative: κύριε Δήμαρχε addresses the mayor, while a genitive phrase would express a different relationship. Matching the English word mayor does not by itself identify the Greek case.
Aspect, time and dependent forms
Compare γράφει, έγραφε and έγραψε in their contexts. An imperfect can present past background or repetition; an aorist presents a bounded occurrence without necessarily meaning a literally instantaneous event. The perfective stem also appears without past reference: θα γράψει and να γράψει must not be labelled past merely because they share a stem with έγραψε.
Traditional school grammar describes να constructions as subjunctive forms, with aspectual distinctions such as να γράφω and να γράψω. The appropriate choice depends on whether the context presents continuing or repeated activity or a bounded occurrence. Temporal and conditional clauses can use dependent forms without an overt να, so do not identify every form by one preceding particle alone.
Pronouns, negation and register
Weak object pronouns ordinarily precede a finite verb in examples such as Μου το έδωσε. An imperative can show following placement, as in Δώσε μου. Check the actual construction and accentuation instead of copying a word-order rule from English. The choice between δεν and μη(ν) also depends on construction; identify what is negated and how the clause is formed.
The second-person plural can express polite address to one person, but social meaning depends on relationship and context. Maintain coherent address within a message. Monotonic accents and spelling support distinctions in reading and writing, so proofread actual word forms rather than relying on pronunciation alone. Native-language analysis should connect these grammatical choices to meaning and communicative effect, not simply list labels.