Then came the modal system (can, could, may, might—degrees of possibility, not politeness). The voice system (active vs. passive—not just style, but focus ). The article system (a/an, the, zero article—a logic based on shared knowledge). And the preposition system (not random, but spatial, temporal, or abstract mapping).
She wrote: I wish I were rich. (I am not rich.) If I were you… (I am not you.) Then came the modal system (can, could, may,
That night, Marta sat in her cramped apartment, scrolling through teaching forums. Someone mentioned a book: Systems in English Grammar: An Introduction for Language Teachers by Peter Master. The PDF was elusive, but a used copy from a university library in Ohio was on its way. The article system (a/an, the, zero article—a logic
She turned to Chapter 1: The Tense-Aspect System . Marta had always taught present, past, future—neat boxes. But Master’s diagram showed a river: time flowing, actions completing, repeating, continuing. The difference between “I ate” (simple past: a completed event) and “I have eaten” (present perfect: a past action with present relevance) wasn’t a rule to memorize—it was a conceptual choice the speaker makes. (I am not rich
The engineer’s eyes lit up. “So it’s not an exception. It’s a pattern.”
When it arrived, the cover was faded, the spine creased. She opened to the introduction and read: “Most grammar books for teachers present rules. This book presents systems.”