English version

brush up (on) something

From Longman Dictionary of Contemporary Englishbrush up (on) something phrasal verbIMPROVEto practise and improve your skills or your knowledge of something that you learned in the past I must brush up on my French before I go to Paris. brush→ See Verb table
Examples from the Corpus
brush up (on) I have already said how little I knew about cancer, and I now began to brush up on it.For the province's future Olympic hopefuls have been brushing up on skills both on and off the sports fields.Public libraries frequently have computers that people can use to brush up on their skills.The guide can be used an introduction to the hobby or as a means to brush up skills.
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Verb table
brush
Simple Form
Present
I, you, we, theybrush
he, she, itbrushes
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Past
I, you, he, she, it, we, theybrushed
Present perfect
I, you, we, theyhave brushed
he, she, ithas brushed
Past perfect
I, you, he, she, it, we, theyhad brushed
Future
I, you, he, she, it, we, theywill brush
Future perfect
I, you, he, she, it, we, theywill have brushed
> View Less
Continuous Form
Present
Iam brushing
he, she, itis brushing
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you, we, theyare brushing
Past
I, he, she, itwas brushing
you, we, theywere brushing
Present perfect
I, you, we, theyhave been brushing
he, she, ithas been brushing
Past perfect
I, you, he, she, it, we, theyhad been brushing
Future
I, you, he, she, it, we, theywill be brushing
Future perfect
I, you, he, she, it, we, theywill have been brushing
> View Less