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Collocation

That must have been interesting.

Demonstrative + modal perfect + adjective B1 Demonstrative + modal perfect + adjective

An expression used to acknowledge or comment on an past experience or situation, implying an assumption or conclusion that it was indeed engaging or notable.

That must have been interesting.: An expression used to acknowledge or comment on an past experience or situation, implying…

Definition

'That must have been interesting.' is a common English collocation. An expression used to acknowledge or comment on an past experience or situation, implying an assumption or conclusion that it was indeed engaging or notable.

That must have been + adjective/noun phrase

“You visited the ancient ruins? That must have been interesting.”

Examples

  • Learning about ancient civilizations through archaeological digs, that must have been interesting.
  • The sudden power outage during the concert? That must have been interesting.
  • Living in a foreign country for a year without speaking the language, that must have been interesting.
Show more examples
  • When they told you about the unexpected plot twist, that must have been interesting.
  • Hearing all those personal stories from the veterans, that must have been interesting.
  • Watching the live surgical procedure as a medical student, that must have been interesting.
  • Navigating the old labyrinthine city streets without a map, that must have been interesting.
  • Your visit to the completely automated factory, that must have been interesting.
  • The discussion about the future of AI, that must have been interesting.

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