- Do you ever wonder if you’re using “sure” correctly in every situation?
- Are you confident in knowing when to say “make sure” versus just “be sure”?
- Wish you could express certainty and reliability in English like a native speaker?
Mastering collocations — words that naturally go together — is a surefire way to boost your English fluency. Instead of translating word-for-word, learning these natural pairings with “sure” will help you sound more authentic, reduce communication anxiety, and make your language flow effortlessly. Let’s dive in and unlock the power of “sure” together!
Common Collocations with SURE as an Adjective
As an adjective, “sure” primarily describes a state of certainty, reliability, or guarantee. Understanding its various pairings will make your English more precise and natural.
Expressing Certainty and Confidence
These collocations are used when you want to convey that you are certain about something or confident in a particular outcome.
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Be sure (of/about something/someone)
Meaning: To be convinced or have no doubt. “Of” and “about” are often interchangeable, though “of” can sometimes imply a deeper, more personal conviction or knowledge, especially regarding facts or abilities.
Example (US): “I’m sure of my decision to move abroad.”
Example (UK): “She seemed sure about the answer to the question.”
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Feel sure
Meaning: To have a strong sense or intuition that something is true or will happen.
Example: “I feel sure he’ll arrive on time; he’s usually very punctual.”
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Pretty/Quite/Absolutely/Fairly sure
Meaning: These adverbs modify the degree of certainty. “Absolutely sure” is the strongest, while “pretty,” “quite,” or “fairly” indicate a high but not absolute level of certainty.
Example (Pretty): “I’m pretty sure I left my keys on the table.”
Example (Absolutely): “The detective was absolutely sure of the suspect’s guilt.”
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Dead sure (informal)
Meaning: Extremely certain; a more emphatic and informal way of saying “absolutely sure.” Common in both US and UK English.
Example: “Are you dead sure you locked the front door? I have a bad feeling.”
Indicating Reliability and Guarantees
These collocations refer to things that are certain to happen, reliable, or guaranteed to succeed.
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A sure thing
Meaning: Something that is certain to happen or succeed, often used in informal contexts like sports or business.
Example: “The investment seemed a sure thing, but the market crashed.”
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A sure sign (of something)
Meaning: A clear indication or symptom that something else is happening or will happen.
Example: “The heavy clouds were a sure sign of an approaching storm.”
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A sure bet (informal)
Meaning: Something that is almost certainly going to happen or be successful; similar to “a sure thing” but often implying a strong prediction.
Example (US): “With his talent, he’s a sure bet to win the championship.”
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Sure-fire (plan/method/way) (adjective)
Meaning: Certain to succeed, effective without fail. (Note: This is a compound adjective and is always hyphenated).
Example: “We need a sure-fire strategy to increase our online sales.”
For Emphasizing Confirmation
This phrase is used to confirm something emphatically or to express agreement.
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For sure (adverbial phrase, informal)
Meaning: Certainly; definitely; without a doubt. Often used informally to confirm or agree. Can also mean “definitely” at the end of a sentence.
Example (Agreement): “Can you help me move this table?” “For sure!”
Example (Certainty): “I’ll be there tomorrow for sure.”
Essential Verbal Collocations Involving SURE
While “sure” itself is an adjective, it forms crucial verbal collocations that are indispensable for English fluency. These phrases are about taking action to confirm or guarantee something.
Ensuring and Verifying
These phrases emphasize the act of checking, confirming, or guaranteeing an outcome.
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Make sure (that/to do something)
Meaning: To check or confirm that something has happened or will happen; to ensure.
Example (US): “Please make sure that all windows are closed before you leave.”
Example (UK): “Did you make sure to turn off the oven?”
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Be sure to (do something)
Meaning: To remember to do something; to definitely do something. It’s often used as a polite instruction or reminder.
Example: “When you visit Paris, be sure to try the croissants!”
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Rest assured (that…)
Meaning: To be confident or certain that something is true or will happen, often used to alleviate worry.
Example: “You can rest assured that your personal data is safe with us.”
Master Summary: Key Collocations with SURE
Here’s a quick overview of the most important collocations to remember, designed to help you reinforce your learning and build confidence.
| Collocation | Part of Speech | Quick Meaning |
|---|---|---|
| be sure of/about | Adjective Phrase | To be certain or convinced. |
| feel sure | Adjective Phrase | To have a strong intuition or conviction. |
| pretty/absolutely sure | Adjective Phrase | Modifying the degree of certainty. |
| dead sure | Adjective Phrase (informal) | Extremely certain. |
| a sure thing | Noun Phrase | Something certain to happen/succeed. |
| a sure sign | Noun Phrase | A clear indication. |
| sure-fire | Adjective | Certain to succeed; unfailing. |
| for sure | Adverbial Phrase (informal) | Certainly; definitely. |
| make sure (that/to) | Verb Phrase | To ensure or verify. |
| be sure to | Verb Phrase | To remember to do something. |
| rest assured | Verb Phrase | To be confident that something is true. |
Common Mistakes: Natural vs Unnatural
Avoid common pitfalls by focusing on natural English expressions. Direct translation often leads to awkward or incorrect phrases. Here’s how to sound more like a native speaker:
| Do Not Say | Say This |
|---|---|
| I am secure for this. | I am sure of this. / I am certain about this. |
| Make yourself sure. | Make sure. / Ensure. |
| A sure success. | A sure thing. / A sure-fire success. |
| I want to be sure to that you understand. | I want to make sure that you understand. |
| Certainly I will come. | I’ll come for sure. / I’ll definitely come. |
Subject: Project Update – Confirming Next Steps
Hi Team,
Just a quick update on the Q3 marketing campaign. I wanted to make sure that everyone is aligned on the new launch date. I’m pretty sure we finalized it for October 15th, but please let me know if there’s any confusion. We need a sure-fire plan to hit our targets, and clear communication is a sure sign of a successful team.
Please be sure to submit your revised content drafts by end of day tomorrow. You can rest assured that I’ll review them promptly. This quarter’s success is going to be a sure thing if we all work together!
Thanks,
Sarah
Frequently Asked Questions about Sure Collocations
What’s the difference between “I am sure of” and “I am sure about”?
Both “sure of” and “sure about” convey certainty, and they are often interchangeable. However, “sure of” can sometimes imply a slightly stronger, deeper personal conviction or knowledge, especially when referring to facts or abilities (e.g., “I’m sure of his honesty,” “She’s sure of herself”). “Sure about” is very common and broadly applicable to various topics (e.g., “Are you sure about the directions?”). For most learners, choosing either is perfectly acceptable in modern English.
Can “sure” be used as an adverb?
Informally, “sure” can be used as an adverb, typically meaning “certainly” or “yes.” For example, “Sure, I can help you with that!” or “He can run fast, sure.” However, in formal writing or when precise adverbial modification is needed, “surely” is the standard adverb form (e.g., “He surely knows the answer”). When discussing collocations, we primarily focus on “sure” as an adjective or within fixed phrases like “make sure” or “for sure.”
Is “sure-fire” hyphenated?
Yes, “sure-fire” is always hyphenated when used as an adjective (e.g., “a sure-fire solution,” “a sure-fire hit”). It functions as a single descriptive unit meaning “certain to succeed” or “unfailing.” It’s important to remember the hyphen to maintain its correct grammatical form and meaning.
What’s a polite way to ask someone to “make sure” of something?
While “Please make sure…” is perfectly polite, you can soften it further by adding “Could you please…” or “Would you mind…” For example: “Could you please make sure that the report is sent by noon?” or “Would you mind making sure to lock the office?” Using “be sure to” is also a polite way to give a reminder: “Please be sure to double-check the figures.”
When should I use “for sure” versus “certainly”?
“Certainly” is a more formal adverb and can be used in almost any context to mean “without a doubt” or “definitely.” “For sure” is an informal adverbial phrase, very common in spoken English and informal writing. It’s often used at the end of a sentence for emphasis or as a quick, affirmative response. While “I will certainly be there” is correct, “I’ll be there for sure” is more relaxed and conversational. Avoid “for sure” in highly formal documents or academic writing.
As a Spanish speaker, expressing certainty with 'estar seguro de' translates directly, but I knew there were nuances. This article helps me differentiate when to use 'of' or 'about' naturally. ¡Excelente!
¡Gracias, Diego! It's fantastic to hear that the article addresses those important nuances for Spanish speakers. Recognizing these subtle differences is key to mastering natural English expression. Keep practicing, and you'll be speaking like a native in no time!
This blog is always a surefire way to boost my English! The clarity of explanation is amazing. I always confuse 'sure' with 'certain', but now the difference is clearer. Thank you!
What a wonderful compliment, Priya! We're delighted to be your 'surefire way' to English improvement. We understand the confusion between 'sure' and 'certain', and we're glad we could help clarify. Keep up the fantastic work!
Solid article! The examples are particularly useful. I've heard 'make sure' used quite a bit in informal conversation, so I'm keen to see that covered next.
Thanks, Kevin! We agree, 'make sure' is incredibly common and versatile in everyday English. We're already working on that follow-up post to delve into its various uses. Stay tuned!
Thank you for this! As a beginner, sometimes these small words cause big problems. This makes it easier to understand. I'm trying to be sure of my vocabulary every day.
You're absolutely right, Nguyen! Small words often have significant nuances. Your dedication to being 'sure of your vocabulary' daily is an excellent approach! Keep building that foundation, and don't hesitate to ask if you have more questions.
So helpful! I'm sure I'll refer back to this article often. 'Surefire way' is a new collocation for me too, very useful!
Fantastic, Isabella! 'Surefire way' is indeed a great one to add to your vocabulary – it means certain to succeed! We're thrilled you found value in the article and picked up a new phrase. Happy learning!
I teach advanced learners, and even they sometimes struggle with the subtle differences in prepositions. This explanation of 'be sure of/about' is concise and clear. Great resource!
Thank you, Max! We appreciate your feedback. It's true that even advanced learners benefit from revisiting and refining these fundamental yet tricky aspects of English. We're glad we could provide a useful tool for your classroom!
This is a very practical article. I love how it emphasizes learning natural pairings. I often find myself translating word-for-word, which makes my English sound stiff. This is a good reminder.
That's exactly the problem we aim to solve, Fatima! Moving beyond word-for-word translation to understanding natural collocations is a game-changer for fluency and sounding authentic. Keep up the excellent work!
This article is a lifesaver! I was always second-guessing myself when using 'sure.' Now I feel much more confident. Can't wait for the next part!
We're so happy to hear that, Chloe! Building confidence is a key part of language learning, and we're here to help you every step of the way. Keep practicing and your fluency will continue to soar!
I often hear native speakers say 'Are you sure?' but sometimes also 'Are you sure about that?' What's the main difference in nuance there?
Great observation, João! When someone asks 'Are you sure?', it's a general question about your certainty. 'Are you sure about that?' specifically directs the question to a previous statement or piece of information. The 'about that' clarifies the subject of the certainty. Both are common and correct!
Very clear explanation! I'm sure I'll remember this now. The example sentences are really helpful. Do you plan to cover 'for sure' and 'sure enough' in a future article?
That's a definite 'yes,' Svetlana! We absolutely plan to delve into 'for sure' and 'sure enough,' along with other fascinating uses of 'sure' in upcoming articles. Your suggestions help us tailor content to your needs, so thank you!