Academy / English Grammar
#3 Adjectives and Adverbs: Describing the World
Mar 1, 2026 · Oiyo
Master adjectives and adverbs — their comparative and superlative forms, placement rules, and the most common mistakes learners make.
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Academy / English Grammar
#4 Building Sentences: From Simple to Complex
Mar 1, 2026 · Oiyo
Understand the three types of English sentences — simple, compound, and complex — and learn to build them with the right conjunctions.
Academy / English Grammar
#5 The Article System: A, An, and The
Mar 1, 2026 · Oiyo
Master English articles — definite, indefinite, and zero article — with clear rules, a decision table, and fixes for the most common non-native errors.
Academy / English Grammar
#6 Prepositions of Time, Place, and Direction
Mar 1, 2026 · Oiyo
Conquer English prepositions of time, place, and direction with clear rules, collocation tables, and common error corrections.
Academy / English Grammar
#7 Forming Questions and Negative Sentences
Mar 1, 2026 · Oiyo
Learn how to form yes/no questions, Wh-questions, and negatives in English using auxiliary verbs do, does, and did.
Academy / English Grammar
#8 The Passive Voice: When the Object Becomes Subject
Mar 1, 2026 · Oiyo
Understand how to form and use the passive voice in English, including tense changes, when to use it, and common mistakes to avoid.
Academy / English Grammar
#9 If Clauses: Zero, First, Second, and Third Conditionals
Mar 1, 2026 · Oiyo
Master all four English conditional sentence types — zero, first, second, and third — with a clear structure table and common error fixes.
Academy / English Grammar
#10 Gerunds and Infinitives: -ing vs To
Mar 1, 2026 · Oiyo
Learn which verbs take gerunds, which take infinitives, and which take both — including the crucial meaning differences that change everything.
Academy / English Grammar
#11 Modal Verbs: Ability, Permission, Obligation, and Possibility
Mar 1, 2026 · Oiyo
A complete guide to English modal verbs — can, could, may, might, must, should, will, would, and shall — with usage tables and examples.
Academy / English Grammar
#12 Reported Speech: Telling What Others Said
Mar 1, 2026 · Oiyo
Learn how to convert direct speech to reported speech in English, including tense backshift, pronoun changes, and time expression adjustments.