Meaning of PROBLEM in English

PROBLEM

noun

1

BAD : I experienced problems to find the right accommodation.

GOOD : I experienced problems in finding the right accommodation.

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have/experience a problem/problems (in) doing sth (NOT to do ): 'You shouldn't have any problems in getting a visa.'

2

BAD : Unemployment is a very important problem.

GOOD : Unemployment is a very serious problem.

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a serious problem (NOT important ): 'Teenage vandalism is a serious problem in this area.'

3

BAD : When population growth is not controlled, serious problems can happen.

GOOD : When population growth is not controlled, serious problems can arise.

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problem + arise / occur (NOT happen ): 'How did the problem first arise?'

Longman Common Errors English vocabulary.      Английский словарь распространенных ошибок Longman.