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believed to extinct vs believed to be extinct

Both phrases are correct, but they are used in different contexts. 'Believed to be extinct' is the more common and natural choice when referring to a species or a group of organisms. On the other hand, 'believed to extinct' can be used in a more general sense when talking about beliefs or ideas that are no longer prevalent.

Last updated: March 26, 2024 • 579 views

This phrase is correct in a more general context when referring to beliefs or ideas that are no longer prevalent.

"believed to extinct "

This phrase can be used when talking about beliefs or ideas that are no longer prevalent. It is less common when referring to the extinction of species or organisms.

Examples:

  • The ancient practice was believed to extinct centuries ago.
  • The old tradition was believed to extinct with the passing of time.
  • Beings who have more than 65 million years and believed to be extinct.
  • Agostina camped for 17 months without human contact in the Bar-She cave near Lake Te-Anin on South Island, New Zealand, where a colony of notorni, a ratite long believed to be extinct, had unexpectedly turned up in 1948.
  • I thought to extinct a bombmaker would be a good thing.
  • The elixir believed to grant everlasting life.
  • Believed to be in the Afghanistan/Pakistan border area.
  • Other information: believed to be in Afghanistan/Pakistan border area.
  • Believed to be in Afghanistan/Pakistan border area.
  • Convicted serial killer Joe Carroll's son is believed to have been abducted...
  • Of those who were believed to be worthy to face the darkness.
  • Currently believed to be in the possession of one Mortimer Fassbinder.
  • Everyone you believed to love you.
  • Multiple witnesses report seeing what they believed to be a kidnapping in Lakeside Park.
  • You have always done what you believed to be right.
  • Then a man believed to be Mangosta resurfaced.
  • He's believed to be one of the missing prisoners.
  • He received an order he believed to be authentic.
  • Nicholas Eastman and Haley Peterson are believed to be traveling on foot and should not be approached.
  • Suspect still believed to be at premises.
  • Joe Carroll and his followers are believed to be inside along with hostages.
  • I'd abandoned everything I believed to please a worthless man.

Alternatives:

  • believed to have become extinct
  • believed to have gone extinct
  • believed to have vanished
  • believed to have disappeared
  • believed to have died out

This phrase is the more common and natural choice when referring to the extinction of species or organisms.

"believed to be extinct "

This phrase is commonly used when referring to the extinction of species or organisms. It is the preferred choice in scientific and formal contexts.

Examples:

  • The dodo bird is believed to be extinct.
  • Many scientists believe that the species is believed to be extinct.
  • Beings who have more than 65 million years and believed to be extinct.
  • Agostina camped for 17 months without human contact in the Bar-She cave near Lake Te-Anin on South Island, New Zealand, where a colony of notorni, a ratite long believed to be extinct, had unexpectedly turned up in 1948.
  • Thought to be extinct until recently.
  • If viruses spread like gossip, man would be extinct.
  • This is a Pakicetus... They were supposed to be extinct.
  • They'll be extinct in two years.
  • I'd rather be extinct than slave to a dead man.
  • Your type will soon be extinct.
  • Men of your type will soon be extinct.
  • They may even be extinct after this pair was made.
  • Those should-be-extinct Fae elders in the banquet room might have bought your hysterical anti-human rhetoric.
  • Those should-be-extinct Fae elders in the banquet room might have bought your hysterical anti-human rhetoric.
  • On December 23, 1938 took a fisherman South African Coelacanth... were thought to be extinct 65 million years ago.
  • If we keep listening to the pharmaceutical companies, one day, we, too, will be extinct.
  • But those are a rare commodity and they were thought to be extinct.
  • Apparently, the two-hump camel is soon to be extinct.
  • It's a Rex Regis Plasmator, a rare thought to be extinct species.
  • There are actually many things on board that were rumoured to be extinct.
  • Grouchy, the only way we'll be extinct is if Smurfette gives Gargamel the secret formula.
  • This mushroom grows in Washington State, Oregon, northern California, British Columbia, now thought to be extinct in Europe.

Alternatives:

  • believed to have become extinct
  • believed to have gone extinct
  • believed to have vanished
  • believed to have disappeared
  • believed to have died out

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