Of course you will vs Surely
When to use each in English, with meaning, register, and examples.
Of course you will
Top 2,000 (common)
Surely
Top 2,000 (common)B1adverb
| Of course you will | Surely | |
|---|---|---|
| Pronunciation | 🇬🇧 //əv kɔːs ju wɪl//🇺🇸 //əv kɔrs ju wɪl// | 🇬🇧 /["/ˈʃʊəli//ˈʃɔːli/"]/🇺🇸 /["/ˈʃʊrli/"]/ |
| Meaning | It's certain that you will do it. | certainly; without a doubt |
| Example | When you asked if you would pass the test, I said, 'Of course you will!' | Surely we should do something about it? |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | - | B1 |
| Part of speech | adverb | |
| Collocations | Of course you can, Of course not, Of course we will | surely believe, surely know, surely must |
| Antonyms | - | doubtfully, unsure |
| Common mistakes | Using 'of course you will' in a sarcastic tone when it doesn't apply., Confusing with 'of course not', which expresses a negative sentiment., Relying on it in formal presentations. | Confusing 'surely' with 'sure' — 'sure' can be an adjective., Using 'surely' as a response when a simple 'yes' would suffice., Omitting 'surely' in a sentence where it clarifies certainty. |
| Usage notes | Commonly used in conversations to express certainty or assurance. Suitable in both spoken and written contexts. Avoid in overly formal writing. | Use 'surely' to express certainty. It’s appropriate in both spoken and written contexts but is more common in formal discussions. Avoid using it in very casual conversations where simpler words like 'definitely' might fit better. |
See it in real clips
Frequently asked questions: Of course you will vs Surely
What's the difference between Of course you will and Surely?
Of course you will: It's certain that you will do it. Surely: certainly; without a doubt
Can you show an example of each?
Of course you will: When you asked if you would pass the test, I said, 'Of course you will!' Surely: Surely we should do something about it?
Can I use Of course you will and Surely interchangeably?
Not always. Of course you will and Surely are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.