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I doubt that vs I doubt whether

Both 'I doubt that' and 'I doubt whether' are correct phrases, but they are used in slightly different contexts. 'I doubt that' is used when expressing skepticism or uncertainty about a specific statement or fact, while 'I doubt whether' is used when questioning the possibility or likelihood of something happening. They are not interchangeable, as they convey different meanings.

Last updated: April 11, 2024 • 249 views

I doubt that

This phrase is correct and commonly used in English to express skepticism or uncertainty about a specific statement or fact.

This phrase is used to indicate skepticism or uncertainty about a particular statement or fact. It is followed by a clause that states the doubtful information.

Examples:

  • I doubt that he will come to the party.
  • I doubt that it will rain tomorrow.
  • I doubt that she is telling the truth.
  • I doubt that the project will be completed on time.
  • I doubt that he is the right person for the job.
  • John: Fred says he can't come to work because he's sick. Jane: I doubt that. See also: doubt, that. McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
  • May 25, 2016 ... If you really doubt that something is true (suspect that it's false), use “doubt that”: “I doubt that Fred has really lost 25 pounds.
  • I doubt that/whether/if it was what he wanted. I do not doubt that/if/whether he will succeed. Which conjunction in the above samples should I ...
  • Synonyms & Antonyms of doubt (Entry 2 of 2). to have no trust or confidence in. I doubt that you can do all that you say. Synonyms for doubt.
  • Mar 4, 2022 ... Don't still have them, but great store.” “I love that they are carrying on this great American tradition. I doubt that your computers know you ...
  • I doubt that... but you never know. 667. 225. He's as sweet as he can be and I have no doubt his intentions are honorable.

Alternatives:

  • I'm skeptical that
  • I'm uncertain that
  • I question whether

I doubt whether

This phrase is correct and commonly used in English to question the possibility or likelihood of something happening.

This phrase is used to express doubt about the possibility or likelihood of something happening. It is followed by a clause that presents the doubtful situation.

Examples:

  • I doubt whether he will be able to finish the project on time.
  • I doubt whether it is a good idea to invest in that company.
  • I doubt whether she will accept the job offer.
  • I doubt whether we will have enough time to complete the task.
  • I doubt whether the plan will succeed.
  • May 25, 2016 ... If you want to express uncertainty, use “whether”: “I doubt whether we'll see the comet if the clouds don't clear soon.
  • I doubt whether it was what he wanted. I do not doubt that he will succed. Thank you!
  • The verb doubt in one of the few exceptions; it only embeds whether-questions. (Whether can be replaced by if in colloquial English.) (1) I doubt whether they ...
  • I doubt whether he will succeed. I suppose both of them are correct, since they're expressing the same meaning.
  • Viktor E. Frankl — 'I doubt whether a doctor can answer this question in general terms. For the meaning of life differs from man to man, from day to day ...
  • I doubt whether this is true (or not). Every one is at liberty to doubt whether ... (or not). To this part of the rule there is no exception ...
  • 6 days ago ... I doubt whether/if I can finish the work on time. [ + that ] They had begun to doubt that it could be done. He ...
  • English With regard to Amendment No 35, I doubt whether there is anything to be gained by institutionalising a 'think-tank ' with non-governmental ...

Alternatives:

  • I question whether
  • I'm unsure whether
  • I'm uncertain about whether

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