A grammar series teaching English in context at intermediate level, covering reported speech and backshift, the present perfect, modal verbs, conditionals, the passive voice, and conjunctions, with attention to common errors and descriptive grammar.
A playlist covering the perfect forms of the English verb at beginner to intermediate level, explaining the present perfect, past perfect, and future perfect, and the distinction between simple, continuous, and perfect aspect.
An advanced grammar series covering the present perfect and aspect, modal verbs, reported speech and backshift, the passive voice, phrasal and prepositional verbs, gerunds and participles, determiners, and dependent and noun clauses.