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I am certain vs I am sure

Both 'I am certain' and 'I am sure' are correct and can be used interchangeably to express confidence or conviction about something.
Michele A. profile picture

Explained by Michele A.
Editor at TextRanch

Last updated: January 13, 2025 • 8093 views

This phrase is correct and commonly used in English to express a high level of confidence or conviction about something.

"I am certain"

This phrase is used to convey a strong sense of assurance or belief in a statement or fact. It indicates a high level of certainty.

Examples:

  • I am certain that we will succeed in our project.
  • She is certain that she locked the door before leaving.
  • He is certain that he left his keys on the table.
  • Are you certain that you turned off the stove?
  • They are certain that the concert will be amazing.
  • 2 days ago ... One thing I am certain about is that Pep won't go down without a fight. We will be back.
  • Apr 12, 2011 ... The difference between "I am certain..." and "I am sure..."?
  • May 21, 2024 ... I am certain of you and it's not just your infectious smile or anything you do. It's not just your laugh or your eyes or that freckle I can ...
  • Jun 8, 2020 ... If I say I am certain that, does it mean I am more sure that? Last edited by a moderator: Jun 8, 2020 ...
  • Oct 13, 2024 ... 14K likes, 487 comments - rashanali on October 13, 2024: "I am certain Wanda Smith helped pave the way for women like myself, Angela Yee and ...
  • I am certain that everyone on this planet has met somebody else who has been intersex." -Georgiann Davis apple. co/2eT781X #genderrevolution. Giuseppe ...
  • Jun 2, 2024 ... I am certain it will. People want what we collectively create. That won't change. It's painful now I know and terrifying. Please hold on.
  • 'When I look back, I am certain that love is what got me here'. The Very Rev'd Dr. Kevin George. May 23, 2024. News; 'When I look back, I am certain that ...
  • Feb 17, 2024 ... It's unsatisfying… 'I am certain of nothing. I'm not even sure I'm certain of that.' If I believe in anything, it is doubt. The root cause of ...

Alternatives:

  • I am sure
  • I am confident
  • I am convinced
  • I am positive
  • I am convinced

This phrase is correct and commonly used in English to express a high level of confidence or conviction about something.

"I am sure"

This phrase is used to convey a strong sense of assurance or belief in a statement or fact. It indicates a high level of certainty.

Examples:

  • I am sure that we will win the game.
  • She is sure that she locked the car.
  • He is sure that he turned off the lights.
  • Are you sure that you have the right address?
  • They are sure that the movie will be great.
  • Nov 5, 2014 ... Provided to YouTube by Reunion Records I Am Sure · Michael W. Smith The First Decade: 1983-1993 ℗ 1984 Reunion Records, Inc. Released on: ...
  • 20 hours ago ... Locked post. Stickied post. Archived post. Join. Options. Report. I am sure he supported Giggi to bring the him on board. This video cannot be ...
  • Jul 30, 2018 ... Provided to YouTube by Universal Music Group I Am Sure · Dan Bremnes Where The Light Is ℗ 2015 Sparrow Records Released on: 2015-06-09 ...
  • 3 days ago ... I am sure some people here can relate to this. Humor/Memes. r/FigureSkating ...
  • Am I right when I am sure? Data consistency influences the relationship between diagnostic accuracy and certainty. Acad Med. 2014 Jan;89(1):107-13. doi ...
  • Mar 30, 2012 ... Hi All! I use the phrase "As I am sure you will understand" quite often in my business letters - until a friend warned me that this phrase ...
  • Dec 14, 2010 ... OK So I am newbie, and I am sure that these questions are dumb, but I have done my homework and Im still lost... I watched the training ...
  • Sep 15, 2024 ... Got a fail result when I am sure i passed. Failed the exam with 48 scores when I was 100% i passed based on the questions and I knew for a ...
  • Oct 24, 2023 ... IMC PLAT 7.3 E0710 but I am sure way earlier too: cannot delete SNMP templates: "template XYZ is in use" · 1. IMC PLAT 7.3 E0710 but I am sure ...
  • Aug 31, 2014 ... Oh yes, I am sure that he is the best asset who works with the Director or the General Manager. She or he makes everything happen and it is very ...

Alternatives:

  • I am certain
  • I am confident
  • I am convinced
  • I am positive
  • I am convinced

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