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
investigate that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "investigate that" is correct and usable in written English.
You can use it when you want someone to look into or examine a specific issue or matter. Example: "Please investigate that matter further to ensure we have all the necessary information before making a decision."
✓ Grammatically correct
News & Media
Science
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
And then I start to investigate that".
News & Media
The Brooklyn district attorney's office continues to investigate that accident.
News & Media
Sure, Democrats may want to investigate that claim fully.
News & Media
Intelligence agencies began collaborating to investigate that operation.
News & Media
"I really wanted to investigate that moment in terms of my personality," he says.
News & Media
Attorney General Janet Reno asked Mr. Starr to investigate that matter along with his other chores.
News & Media
A caseworker was sent to investigate that day but found no one home.
News & Media
I really did set out to kind of investigate that world".
News & Media
The objective of this study was to investigate that possibility.
"At this point, the Justice Department is best equipped to investigate that central question and reach a fair conclusion".
News & Media
Meryle Secrest has set out to investigate that contradiction in her new life of Rodgers, "Somewhere for Me".
News & Media
Expert writing Tips
Best practice
When using "investigate that", ensure the context clearly defines what "that" refers to, avoiding ambiguity for the reader.
Common error
While "investigate that" is generally acceptable, consider using more casual alternatives like "look into that" in informal conversations to maintain a natural tone.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "investigate that" functions as a verb phrase with a demonstrative pronoun. It typically introduces a call to action, urging someone to inquire into or examine a specific issue. Ludwig AI confirms the phrase is correct and usable.
Frequent in
News & Media
56%
Science
28%
Formal & Business
6%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "investigate that" is a versatile phrase used to call for an inquiry or examination of a specific issue. Ludwig AI confirms its correct usage. While appropriate for various contexts, it's essential to consider the level of formality and audience when choosing alternative phrases like "look into that". The phrase is frequently found in News & Media and Science, suggesting its widespread use in reporting and scholarly analysis. Ensure clarity by clearly defining what "that" refers to. Overall, "investigate that" is a reliable way to prompt further inquiry.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
look into that
This alternative is more informal and implies a less rigorous examination.
examine that
This alternative suggests a more detailed and careful inspection.
explore that
This alternative emphasizes discovery and a more open-ended approach.
analyze that
This alternative implies a systematic and detailed examination, often involving data.
check that out
This alternative is very informal and often used in casual conversation.
scrutinize that
This alternative suggests a very critical and thorough examination, looking for flaws.
research that
This alternative suggests a systematic investigation, often for academic purposes.
delve into that
This alternative suggests a deep and thorough exploration of a topic.
study that
This alternative is more academic and implies a formal learning process.
assess that
This alternative implies evaluating the merit or importance of something.
FAQs
How can I use "investigate that" in a sentence?
Use "investigate that" when you want to convey a need to inquire into or examine a specific issue, for example, "The authorities need to "investigate that" claim of fraud thoroughly".
What are some alternatives to "investigate that"?
Depending on the context, you can use alternatives like "look into that", "examine that", or "check that out".
Is "investigate that" formal or informal?
"Investigate that" is generally considered neutral to formal. It can be used in professional or news contexts. In more casual settings, consider using "look into that".
What's the difference between "investigate that" and "research that"?
"Research that" implies a more systematic and academic approach, while "investigate that" suggests a more general inquiry or examination, possibly related to a specific incident or claim.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested