• Phrasal Verb – Brush up (on something)
  • Meaning – To refresh your skill, knowledge or memory of a subject. To practice or improve your skill at something. To brush up on something means that you have learned about it before – and you need to refresh your memory of this skill or subject.
    • This phrasal verb is not separable.
    • “I have an English exam next week. I need to brush up on my phrasal verbs because I have forgotten most of them!”
What is a phrasal verb?

phrasal verb is a verb combined with 1 or 2 small words. These small words are particles. A particle can be a preposition or adverb. The phrasal verb has a different meaning from the verb alone because the particle changes the meaning of the verb.

Some phrasal verbs can be separated. When we change the tense of the phrasal verb we only modify the verb part. The particle remains the same.