Arc Context: General English
This Professional arc uses General English context to make each sentence semantically connected instead of isolated drill material. Because vocabulary like demonstrated, theoretical, empirical, nadia's recurs in sequence, retrieval strength improves with each pass, and the modal_verbs sentence profile keeps attention on transferable grammar control.
Mastering Modal Verbs for Nuance
Modal verbs add layers of meaning to English sentences, expressing ability, possibility, permission, obligation, and probability. Unlike regular verbs, modals don't change form for person or tense and are followed by bare infinitives (can go, must leave). Understanding modal distinctions is crucial: "must" expresses strong obligation while "should" suggests advice; "can" indicates ability or permission while "may" sounds more formal; "might" and "could" express tentative possibility. Modal perfect forms (could have gone, should have known) refer to past possibilities and regrets. Mastering modals enables precise communication of attitude, certainty level, and social relationships. These small words carry significant interpersonal weight in English interaction.