English version

buy something ↔ up

From Longman Dictionary of Contemporary Englishbuy something ↔ up phrasal verbBUYto quickly buy as much of something as possible, for example land, tickets, or goods Much of the land was bought up by property developers. buy→ See Verb table
Examples from the Corpus
buy upIts art renaissance began in 1996, when the new owners bought it up.Make a few phone calls and see what pity could buy.Our advice is: Always, always register every product you buy!But much of what they buy ends up being returned or hidden away at the back of a drawer.The buy was set up by the Naval Criminal Investigative Service, whose agents were investigating possible drug use at the academy.He had even bought a house up the road from Sunset.
From Longman Business Dictionarybuy something → up phrasal verb [transitive]COMMERCE to quickly buy as much as possible of something such as land or ticketsMuch of the land has been bought up by property developers. buy→ See Verb table
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Verb table
buy
Simple Form
Present
I, you, we, theybuy
he, she, itbuys
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Past
I, you, he, she, it, we, theybought
Present perfect
I, you, we, theyhave bought
he, she, ithas bought
Past perfect
I, you, he, she, it, we, theyhad bought
Future
I, you, he, she, it, we, theywill buy
Future perfect
I, you, he, she, it, we, theywill have bought
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Continuous Form
Present
Iam buying
he, she, itis buying
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you, we, theyare buying
Past
I, he, she, itwas buying
you, we, theywere buying
Present perfect
I, you, we, theyhave been buying
he, she, ithas been buying
Past perfect
I, you, he, she, it, we, theyhad been buying
Future
I, you, he, she, it, we, theywill be buying
Future perfect
I, you, he, she, it, we, theywill have been buying
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