Used and loved by millions
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
that have signed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that have signed" is correct and usable in written English.
It can be used to refer to individuals or entities that have completed a signing action, often in legal or formal contexts. Example: "The contract is valid only for those that have signed it."
✓ Grammatically correct
News & Media
Academia
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
60 human-written examples
So far, we have about 170 alumni that have signed up.
Harvard is among 17 academic institutions that have signed on to Facebook's Sponsored Academic Research Agreement.
Academia
The three parties that have signed up hold nearly every seat in Congress.
News & Media
Its jurisdiction is limited to the 120 countries that have signed up.
News & Media
Those countries that have signed up to TRIPS have also accepted international copyright rules.
News & Media
Of the 139 countries that have signed its founding Rome statute, 34 are African.
News & Media
The banks that have signed on have more than a million employees worldwide.
News & Media
Other companies that have signed on are Yahoo, Oracle and the BlackBerry's maker Research in Motion.
News & Media
Clinton carried all dozen of the states that have signed on.
News & Media
She criticised investments by companies in countries that have signed the convention.
News & Media
He would not identify the commercial tenants that have signed on so far.
News & Media
Expert writing Tips
Best practice
When using "that have signed", ensure the context clearly indicates what the subjects have signed, avoiding ambiguity by specifying the document, agreement, or commitment.
Common error
Avoid using "who have signed" when referring to organizations or inanimate entities; "that have signed" is generally preferred in these cases.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that have signed" functions as a relative clause, modifying a noun or pronoun. It specifies which entities or individuals have formally agreed to something by signing a document or agreement. Ludwig AI confirms its grammatical correctness.
Frequent in
News & Media
61%
Academia
9%
Formal & Business
30%
Less common in
Science
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "that have signed" is a grammatically sound and frequently used relative clause that serves to identify entities or individuals who have formally agreed to something, as verified by Ludwig AI. It is versatile enough for various contexts, from news and media to academic and professional settings. Related phrases include "which have ratified" and "who have agreed to", providing alternative ways to express similar concepts. Ensure clarity by specifying what has been signed and avoid using "who" for organizations. Its high frequency across authoritative sources underscores its reliability and widespread acceptance.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
who have agreed to
Replaces "signed" with "agreed to", focusing on the act of agreeing rather than the formal signing.
which have ratified
Replaces "signed" with "ratified", implying a more formal and legally binding agreement.
who are signatories to
Rephrases the sentence to focus on the individuals as signatories.
that have endorsed
Substitutes "signed" with "endorsed", suggesting a public declaration of support.
that have entered into
Uses "entered into" to describe a formal agreement or contract.
that have formally approved
Uses "formally approved" instead of "signed", emphasizing a formal validation.
that have committed to
Uses "committed to" instead of "signed", emphasizing a deeper level of dedication beyond a signature.
which have subscribed to
Replaces "signed" with "subscribed to", implying ongoing agreement or support.
which have adopted
Replaces "signed" with "adopted", implying acceptance and implementation of a policy or standard.
that have acceded to
Replaces "signed" with "acceded to", indicating a formal agreement to join a treaty or convention.
FAQs
How can I rephrase "that have signed" to sound more formal?
For a more formal tone, consider alternatives such as "which have ratified", "that have endorsed", or "that have acceded to", depending on the specific context and the nature of the agreement.
Is it correct to use "who have signed" instead of "that have signed"?
"Who have signed" is generally used when referring to people, while "that have signed" is used for organizations, agreements or inanimate entities. However, both can be grammatically correct depending on the subject being referred to.
What's the difference between "that have signed on" and "that have signed"?
"That have signed on" often implies joining a group, initiative, or service, whereas "that have signed" refers to a more general act of signing a document or agreement. The "on" adds a sense of participation or enrollment.
What are some alternatives to "that have signed" when discussing a treaty?
When referring to a treaty, you might use alternatives like "which have ratified", "which have acceded to", or "that have endorsed" to describe countries that have formally agreed to the treaty's terms.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested