Knowledge Base

Glossary

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definitions of grammar terms used in Insights videos and on the Insights website
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Lexical Categories

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an overview of the different parts of speech, and soon: parts of a sentence and sentence types
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Proficiency Levels

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the standards for each Proficiency Level as set by the CEFR
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Standardized Tests

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COMING SOON

an overview of the TOEFL, IELTS, and YLE exams

English Explained