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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
I have signed up
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I have signed up" is correct and usable in written English.
You can use it to indicate that you have registered or enrolled in something, such as an event, service, or program. Example: "I have signed up for the online course starting next month."
✓ Grammatically correct
News & Media
Travel
Lifestyle
Alternative expressions(20)
I have assumed
I have engaged in
I have performed
I have processed
I have examined
I have born
I have proceeded
I have moved forward
I have worked
I have authorized
I have gathered
I have contracted
I have sailed
I have identified
I have concentrated
I have stipulated
I have registered
I have undertaken
I have continued
I have proposed
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
20 human-written examples
I have signed up for "multi" years.
News & Media
Would I have signed up for this?
News & Media
I have signed up for ribbed basketry for beginners.
News & Media
That's why I have signed up for the Vitality Run Hackney Half Marathon on 10 May.
News & Media
"In a moment of sheer madness, I have signed up to run it.
News & Media
Now it's my turn to give back, and I have signed up to be a peer tutor in English and history for two middle-school boys.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
39 human-written examples
I know what I've signed up for.
News & Media
Well, I've signed up for a mooc in microeconomics.
News & Media
I had signed up for two long day trips.
News & Media
"I've signed up for a NCTJ course in September," he tells us.
News & Media
The fact I've signed up shows I agreed with it," he explained.
News & Media
Expert writing Tips
Best practice
When describing the action of signing up, specify what you signed up for. This provides clarity and avoids ambiguity. For example, "I have signed up for the marathon".
Common error
Avoid using incorrect tenses with "sign up". For example, saying "I am sign up" is grammatically incorrect. The correct form is "I have signed up" or "I signed up".
Source & Trust
92%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I have signed up" functions as a statement of completed action. It indicates that the speaker has completed the process of registering or enrolling in something. Ludwig examples show its usage in various contexts such as signing up for races, courses, or tours.
Frequent in
News & Media
60%
Travel
15%
Lifestyle
10%
Less common in
Formal & Business
5%
Science
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "I have signed up" is a commonly used and grammatically correct phrase to indicate that you have registered or enrolled for something. Ludwig confirms its proper usage across various contexts. While versatile, consider using synonyms like "I've registered" or "I've enrolled" for more formal settings. Remember to specify what you've signed up for to provide clarity. Overall, it’s a reliable way to communicate your participation in an activity or service.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I've registered
This alternative uses "registered" which is a more formal synonym for "signed up".
I've enrolled
This alternative uses "enrolled", indicating a more formal commitment, often in an educational context.
I've joined
This alternative uses "joined", indicating membership or affiliation with a group or organization.
I've subscribed
This alternative uses "subscribed", typically used for ongoing services or publications.
I've opted in
This alternative uses "opted in", referring to choosing to participate in something, especially after being given a choice.
I'm participating
This alternative uses "participating" which focuses on the action of taking part in something.
I've enlisted
This alternative uses "enlisted", often used in the context of military or formal organizations.
I am on board
This alternative uses "on board", suggesting agreement and participation in a project or team.
I put my name down
This alternative uses "put my name down", an informal way of saying you've registered.
I committed myself
This alternative uses "committed myself", emphasizing the dedication to something.
FAQs
What does "I have signed up" mean?
The phrase "I have signed up" means that you have registered or enrolled for something, such as a class, event, or service. It indicates you've taken the necessary steps to participate.
Is "I have signed up" formal or informal?
The phrase "I have signed up" is generally considered neutral and can be used in both formal and informal contexts. Alternatives like "I've registered" or "I've enrolled" might be preferred in very formal settings.
What can I say instead of "I have signed up"?
You can use alternatives like "I've registered", "I've enrolled", or "I've subscribed" depending on the context.
How do I use "I have signed up" in a sentence?
You can use "I have signed up" to express your participation in something. For example, "I have signed up for the conference next week", or "I have signed up for a gym membership".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
92%
Authority and reliability
4.5/5
Expert rating
Real-world application tested