I'll have you know vs Just so you know
When to use each in English, with meaning, register, and examples.
I'll have you know
Beyond 10,000 (less common)
Just so you know
InformalTop 2,000 (common)
Most formal: I'll have you knowMost common: Just so you know
| I'll have you know | Just so you know | |
|---|---|---|
| Pronunciation | 🇬🇧 //aɪl hæv jʊ noʊ//🇺🇸 //aɪl hæv jʊ noʊ// | 🇬🇧 //dʒʌst səʊ jʊ nəʊ//🇺🇸 //dʒʌst soʊ jʊ noʊ// |
| Meaning | I want you to know something important. | A way to tell someone information casually. |
| Example | I'll have you know I graduated at the top of my class. | Just so you know, the meeting has been moved to 3 PM. |
| Register | Neutral | Informal |
| How common | Beyond 10,000 (less common) | Top 2,000 (common) |
| Collocations | I'll have you know I'm an expert, I'll have you know it's true, I'll have you know I was here first | just so you know, I wanted to tell you, just so you know, the time has changed, just so you know, it's not confirmed yet |
| Common mistakes | Used in overly formal situations when it sounds out of place., Misinterpreted as a threat instead of a statement of fact., Confused with 'I want you to know' which can be softer. | Used in formal emails where a direct statement is needed., Confused with phrases like 'for your information' for more formal contexts. |
| Usage notes | Use this phrase to emphasize a point or express pride. It's often used in disputes or to assert oneself. Avoid in very formal contexts. | Use this phrase when you want to inform someone without being too formal. It works well in conversations among friends. |
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Frequently asked questions: I'll have you know vs Just so you know
What's the difference between I'll have you know and Just so you know?
I'll have you know: I want you to know something important. Just so you know: A way to tell someone information casually.
Which is more formal: I'll have you know and Just so you know?
I'll have you know is the most formal of these.
Which is more common: I'll have you know and Just so you know?
Just so you know is the most common in everyday English.
Can you show an example of each?
I'll have you know: I'll have you know I graduated at the top of my class. Just so you know: Just so you know, the meeting has been moved to 3 PM.
Can I use I'll have you know and Just so you know interchangeably?
Not always. I'll have you know and Just so you know 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.