Irregular verb#41 most commonA — B — B

understand

Base form
understand
/ˌʌndəˈstænd//ˌʌndərˈstænd/
Past simple
understood
/ˌʌndəˈstʊd//ˌʌndərˈstʊd/
Past participle
understood
/ˌʌndəˈstʊd//ˌʌndərˈstʊd/
MeaningA1
to know what something means
to understand spoken French

In use

  • Negative · Form 1I don’t understand why the train is late again.
  • Question · Form 1Did you understand the maths homework?
  • Past simple · Form 2Last year Priya understood almost no Spanish, but now she’s fluent.
  • Past simple · Form 2At the meeting on Monday, nobody understood the new rules.
  • Present perfect · Form 3Have you understood all the instructions for the exam?
  • Passive · Form 3Her northern accent was easily understood by everyone in the office.

Watch out

understandedunderstooded

After have it is understood too: Have you understand the rules? → Have you understood the rules?

Irregular Verbs

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