O-Level English Grammar & Vocabulary
The essential reference for all 4 papers. Tenses, conditionals, modals, 200+ academic words, and 60+ Singlish corrections.
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Your Learning Path
Start your journey through grammar and vocabulary — one chapter at a time.
O-Level Grammar Expectations
Understand what grammar skills are tested across all O-Level English papers.
Advanced Tenses (12 Tenses)
Master all 12 English tenses with clear examples and common mistakes.
Modals & Conditionals
Use modals and conditional sentences correctly with confidence.
Complex Sentence Structures
Build sophisticated sentence structures to impress examiners.
Articles, Prepositions & Connectors
Master the tricky articles, prepositions and connectors that trip up students.
Academic Vocabulary Builder
Build a powerful academic vocabulary with themed word banks.
Singlish vs Standard English
Identify Singlish patterns and convert them to Standard English.
50 Most Common Errors
Fix the 50 most common grammar errors Singapore students make.
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Practise real exam-style questions
Past-paper style questions with worked solutions, so students learn from every answer. Free practice available.
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Written by
SGSchoolKaki Education Team
Our team of ex-MOE teachers, private tutors and education data analysts brings 16+ years of combined experience.