先学语法，再上场应用。

Sentence basics: be, present simple, articles, pronouns, questions and word order.

Past, future, modals, quantifiers, comparisons, passive basics and sentence control.

Perfect forms, conditionals, passive, relative clauses, reported speech and verb patterns.

Advanced clauses, inversion, modal perfects, discourse markers and participle structures.

Hypotheticals, nominalisation, aspect nuance, cohesion and complex fronting.

Near-native control of emphasis, register, clause compression and grammatical nuance.