A perfective stem is not always a past tense

A group compares the original Modern Greek examples «Χθες έγραψε την επιστολή», «Αύριο θα γράψει την επιστολή» and «Θέλει να γράψει την επιστολή». The task asks learners to distinguish the complete forms and explain what the shared perfective stem contributes. One learner translates every sentence as a completed past event because the stem resembles the aorist studied earlier. Another ignores the particles and calls γράψει a freely usable Ancient Greek infinitive. A third recognizes that past, future and dependent constructions need to be analysed as wholes. The example does not establish who the writer is or whether the intended letter was eventually completed. A valid response must connect the actual Modern Greek wording to aspect and time without importing a different historical language system.