Mastery of All Verb Tenses and Structures:

• Full command of all tenses with subtle distinctions in meaning.
• Mastery of complex conditionals, including mixed and implied conditionals.
• Advanced use of reported speech in various contexts.
• Full use of passive structures, including passive infinitives and gerunds.
• Inversion after negative adverbials (e.g., "Never have I seen…").
• Subjunctive in formal and hypothetical contexts.
• Advanced linking words and cohesive devices for discourse organization.

Other Advanced Grammar Points:

• Use of ellipsis and substitution for fluency and style.
• Advanced use of cleft sentences for emphasis and contrast.
• Mastery of all modals and semi-modals, including less common ones.
• Complex gerund and infinitive structures for stylistic variation.
• Advanced noun and adjective clauses (e.g., "Whatever you do…," "Whoever says that…").

• Advanced academic and professional vocabulary in multiple disciplines.
• Nuanced vocabulary for expressing attitudes, emotions, and subtle distinctions.
• Cultural and literary references, proverbs, and quotations.
• Idiomatic expressions, slang, and colloquialisms in different registers.

Expressions and Idioms:

• Full range of idioms, phrasal verbs, and set phrases across registers.

• Fluent, spontaneous, and idiomatic expression in any context.
• Summarizing, synthesizing, and critically evaluating complex information.
• Mastery in presenting nuanced arguments, counterarguments, and rebuttals.
• Effective use of humor, irony, and sarcasm.
• Adapting tone, style, and register to diverse audiences and purposes.
• Handling highly specialized discussions with expertise and precision.