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
investigated deeply
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "investigated deeply" is correct and usable in written English.
It can be used when describing a thorough examination or analysis of a subject or issue. Example: "The researchers investigated deeply into the effects of climate change on marine life."
✓ Grammatically correct
Science
News & Media
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
22 human-written examples
But many Citigroup insiders say the bank's risk managers never investigated deeply enough.
News & Media
Then performances of f-BN nanosheets as advanced nanofillers in TPU composites were investigated deeply.
Science
Yet when it comes to design, the concept has not been investigated deeply from a philosophical perspective.
News & Media
"This has to be investigated deeply, not for the amount of money it represents in bribes, but to look for networks of corruption".
News & Media
In addition to maximising profits, maintaining good quality products, reducing NO2 emissions and focus on Visbreaker products contributions is investigated deeply.
In this study, wave & current-induced residual liquefaction in loose seabed floor is investigated deeply and comprehensively adopting a validated integrated numerical model.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
The knowledge about the mechanisms connecting metabolic network and epigenetic is even now to be deeply investigated.
Freeh's 267-page report portrayed a disengaged board that handed too much responsibility to the university president and failed to investigate deeply enough once it became aware of a grand jury investigation.
News & Media
Facebook did not investigate deeply enough, says Parakilas.
News & Media
Virtually from the start of the proceedings against Mr. Ghailani, his lawyers, Mr. Cooper and Peter E. Quijano, made clear they planned to investigate deeply into Mr. Ghailani's treatment while in detention.
News & Media
We regarded as most important to investigate deeply what had happened, as a key to drawing lessons for the future, and their implementation.
News & Media
Expert writing Tips
Best practice
When using "investigated deeply", ensure the context warrants the emphasis on thoroughness. It's suitable for scenarios where a detailed examination is crucial to understanding or resolving an issue.
Common error
Avoid using "investigated deeply" in casual conversations or informal writing. Opt for simpler alternatives like "looked into" or "checked" to maintain a natural tone.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "investigated deeply" functions as a verb phrase with an adverb, indicating the manner in which an action (investigation) is performed. It modifies the verb to emphasize the thoroughness and intensity of the investigation. Ludwig AI confirms this usage through numerous examples across various contexts.
Frequent in
Science
56%
News & Media
38%
Formal & Business
6%
Less common in
Ludwig's WRAP-UP
The phrase "investigated deeply" is a grammatically sound and commonly used expression to convey a thorough examination of a subject. According to Ludwig AI, it appears most frequently in scientific and news contexts, indicating its suitability for both formal and neutral registers. While the phrase is generally acceptable, it's important to consider the audience and context to ensure the tone aligns with the intended message. Alternatives like "thoroughly investigated" or "extensively researched" can provide similar meaning while adapting to different writing styles. Remember to prioritize clear and precise language, choosing the most appropriate phrase based on the specific nuance you aim to convey.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
thoroughly investigated
Replaces the adverb "deeply" with the more common adverb "thoroughly", emphasizing comprehensiveness.
extensively researched
Substitutes "investigated" with "researched" and "deeply" with "extensively", suitable for academic or scientific contexts.
carefully examined
Replaces "investigated" with "examined" and "deeply" with "carefully", suggesting meticulous scrutiny.
probed thoroughly
Uses "probed" as a synonym for "investigated" and "thoroughly" for "deeply", implying a detailed inquiry.
explored in depth
Replaces "investigated" with "explored" and "deeply" with "in depth", suitable for contexts involving discovery and understanding.
scrutinized closely
Replaces "investigated" with "scrutinized" and "deeply" with "closely", emphasizing critical and detailed observation.
analyzed extensively
Substitutes "investigated" with "analyzed" and "deeply" with "extensively", appropriate for analytical contexts.
delved deeply into
Replaces "investigated" with "delved into", adding an element of immersion and thoroughness.
looked into extensively
Uses the phrasal verb "looked into" and replaces "deeply" with "extensively", making it slightly less formal.
examined in detail
Replaces "investigated" with "examined" and "deeply" with "in detail", emphasizing thoroughness and precision.
FAQs
What does "investigated deeply" mean?
The phrase "investigated deeply" means to examine or inquire into something thoroughly and carefully, leaving no stone unturned. It implies a comprehensive and detailed exploration of a topic or issue.
When is it appropriate to use the phrase "investigated deeply"?
It's appropriate to use "investigated deeply" when you want to emphasize the thoroughness and intensity of an investigation or inquiry, often in formal, academic, or professional contexts.
What are some alternatives to "investigated deeply"?
You can use alternatives like "thoroughly investigated", "extensively researched", or "carefully examined" depending on the specific nuance you want to convey.
Is "investigated deeply" more formal than "looked into"?
Yes, "investigated deeply" is generally more formal than "looked into". The latter is a more casual phrasal verb, while the former suggests a more serious and comprehensive inquiry. Therefore, "looked into" can be preferrable in informal conversations.
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
4.1/5
Expert rating
Real-world application tested