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Negative Prefixes Medium Exercises

B2 Level

Negative prefixes medium practice expands your control of opposite meanings. You meet un-, in-, im-, il-, ir-, dis-, and mis-. Some prefixes are linked to spelling: im- often appears before words beginning with p, b, or m, while il- appears before l and ir- before r. Other choices depend more on the word family and meaning.

The prefix mis- often means "wrongly" or "badly", as in misunderstand or misplace. This is different from a simple opposite meaning. Read the whole sentence to decide whether it needs "not", "opposite", or "done wrongly". These B2 questions help you avoid common forms that look possible but are not natural, such as using in- where English normally uses un-. The best answer is the word that matches both the spelling tendency and the meaning of the sentence. Reading the answer aloud can help you notice when a possible-looking prefix is not the usual English form.

Quick Rule

negative prefix + base word, with the prefix chosen by spelling, word family and meaning

  • 1.POSSIBLE -> impossible: an impossible task
  • 2.LEGAL -> illegal: illegal parking
  • 3.RESPONSIBLE -> irresponsible: irresponsible behaviour
  • 4.PLACE -> misplace: misplace your keys