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Confusable Words (affect/effect, its/it's)

Confusable words like affect and effect, or its and it's, are often mixed up but have different meanings and uses, understanding and practicing their correct usage is crucial for clear and effective communication in English.

B1Common Errors

What are Confusable Words

Confusable words are pairs of words like affect and effect, or its and it's, that are often mixed up because they are similar but have very different meanings and uses.

  • **Affect** is a verb that means to influence something, and **effect** is a noun that means a result, so we use affect when talking about something that is doing the influencing, and effect when talking about the outcome of that action.
  • **Its** is a possessive pronoun showing something belongs to it, like its toy, and it's is a contraction of it is or it has, so we use its to show possession and it's when we can replace it with it is or it has.

When to Use Confusable Words

  • We use affect in sentences where something is having an influence, such as the weather affecting the crops.
  • We use effect when talking about the outcome of something, like the effect of the weather on the crops.
  • Its is used to show possession, like the cat chasing its tail, and it's is used in statements like it's going to rain, where it can be replaced with it is.

Examples of Confusable Words

  • Affect is used in the sentence: The cold weather will affect the crops.
  • The effect of the rain on the parade was that it had to be cancelled.
  • The cat was sleeping next to its favorite toy.
  • It's a beautiful day outside.
  • The new policy will affect many employees.
  • The effect of the new policy will be seen in the next quarter.

Common Mistakes with Confusable Words

  • Wrong: The weather will effect the crops. Correct: The weather will affect the crops.
  • Wrong: The cat chased it's tail. Correct: The cat chased its tail.
  • Wrong: Its going to rain. Correct: It's going to rain.

Memory Trick

One way to remember the difference is to think that affect starts with an 'a' which can stand for action, and effect starts with an 'e' which can stand for end result, and for its and it's, try replacing it's with it is in the sentence, if it makes sense, then it's is correct, otherwise use its.

Quick check
The _____ _____ weather made it difficult to plan the outing.

Where this matters in your exam

This topic is important for IELTS writing and reading where incorrect usage of confusable words can lead to deductions in marks, the candidate is expected to demonstrate a good range of vocabulary with accurate usage.

  • IELTS Writing Task 2

    Using correct confusable words in essays will improve your coherence and grammar score

  • IELTS Academic Reading

    Identifying confusable words like its and it's in passages is crucial for comprehension