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Word lists teach English words fast, reading teaches them deeply. What the research on graded readers, novels, and 10+ encounters says, and how to combine both.

A 669,498-person study found grammar learning stays strong until about 17. Why start age matters less than input in school settings, and what to do at each age.

Cambridge English puts B2 at about 500 to 600 guided learning hours and C2 at 1,000 to 1,200. What that means in months if you study 30 or 60 minutes a day.

The hardest English sounds are th, r and l, v and w, ship and sheep vowels, and final consonants. Why your first language decides which, and how to practice.

Native speakers link, drop, and shrink sounds at nearly 200 words a minute. Why that breaks your listening, and the decoding practice research says fixes it.

Ready-made phrases make up about half of English, and learners who use more of them get higher fluency ratings. Colorful idioms matter less, and here is why.

Nation's corpus study puts unaided reading at 8,000 to 9,000 word families and speech at 6,000 to 7,000. What that means per CEFR level, and how to get there.

Learners mix up affect and effect, make and do, or borrow and lend because of first-language transfer, one-to-many translations, and look-alike word forms.

A 2019 study found children read to daily hear 1.4 million more words by age 5. Dialogic reading, timing, and audio choices make bedtime stories teach English.

EF SET's own validation study found its free CEFR test correlates moderately strongly with TOEFL iBT scores. How to test or self-assess your English level.

Self-determination theory research on autonomy, competence, and relatedness explains why English learners quit, and what keeps motivation going instead.

A 2022 meta-analysis of 29 studies found game-based English vocabulary learning works short-term, but most of its edge over non-game study fades within weeks.