C1
Discreet vs Discrete: Tactful or Separate?
Learn a high-level spelling distinction that matters in professional, academic and technical English.
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Common Mistakes
Common English mistakes, explained clearly.
Understand frequent mistakes, why they happen and the natural English to use instead.
CEFR
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Choose the CEFR level that best matches your current English. Some articles are useful across more than one level.
Showing 13–24 of 79 learning articles.
B2C1
Precede vs Proceed: Come Before or Continue Forward?
Distinguish two formal verbs that look similar but organise time and action in completely different ways.
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Principle vs Principal: A Rule, a Main Person, or “Most Important”?
Separate principle from principal by meaning and word class, then use a simple diagnostic that works in academic and business writing.
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Comprise, Consist Of, and Be Composed Of: Whole and Parts Without Confusion
Control three formal structures for describing composition, including the direction of the relationship and the prepositions they require.
Read guideB2C1
Imply vs Infer: What the Speaker Suggests and the Listener Concludes
Keep implication and inference separate by tracking who produces the hint and who draws the conclusion.
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Assure vs Ensure vs Insure: People, Outcomes, and Insurance
Distinguish three similar verbs by asking whether you are reassuring a person, making an outcome certain, or providing insurance.
Read guideB1B2
As vs Like: Role, Similarity, or Clause?
Choose like for similarity, as for a real role or function, and understand why clauses traditionally prefer as, as if or as though.
Read guideA1A2
There vs Their vs They’re: Place, Possession, or “They Are”?
Separate three identical-sounding forms by function: there for place/existence, their for possession, and they’re for they are.
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Your vs You’re: Possessive Adjective or “You Are”?
Use your for possession and you’re for you are, with a fast substitution test that catches the mistake before you send a message.
Read guideA1A2
Its vs It’s: Possessive or “It Is”?
Stop confusing its and it’s with one reliable test: expand the apostrophe form to it is or it has.
Read guideB1B2
Could Have, Should Have, Would Have — Not “Could Of”
Understand why reduced pronunciation creates the spelling error could of and learn the correct modal-perfect structure.
Read guideA2B1
Look Like vs Be Like vs Like: Appearance, Character, or Preference?
Distinguish appearance, character, similarity and preference in high-frequency patterns with like.
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