TextRanch
The best way to perfect your writing.

Discover why 1,062,726 users count on TextRanch to get their English corrected!

1. Input your text below.
2. Get it corrected in a few minutes by our editors.
3. Improve your English!

One of our experts will correct your English.

TextRanch Editors

study investigates vs study investigated

Both phrases are correct, but they are used in different contexts. 'Study investigates' is present tense and is used when describing ongoing or current research. 'Study investigated' is past tense and is used when referring to research that has already been completed.

Last updated: March 22, 2024 • 2563 views

This phrase is correct and commonly used in English when describing ongoing or current research.

"study investigates"

Use 'study investigates' when you want to talk about research that is currently being conducted or ongoing.

Examples:

  • The study investigates the effects of climate change on marine life.
  • The ongoing study investigates the relationship between diet and health.

Alternatives:

  • research investigates
  • investigation studies
  • study is investigating
  • study is looking into
  • study is examining

This phrase is correct and commonly used in English when referring to research that has already been completed.

"study investigated"

Use 'study investigated' when you want to talk about research that has already been conducted or completed.

Examples:

  • The study investigated the impact of social media on mental health.
  • The research team studied investigated the causes of the disease outbreak.
  • The second study investigated LeukoScan in 130 patients with suspected long bone osteomyelitis.
  • The study investigated the different legal approaches and the respective judicial outcomes in these countries and recommended future policy directions.
  • The study investigated a) the effect of simvastatin on mortality, b) the effect of simvastatin on major coronary events, and c) the effect of simvastatin on any coronary event.
  • Two studies investigated the effects of etoricoxib 60, 90 or 120 mg administered once daily for seven days in patients receiving once-weekly methotrexate doses of 7.5 to 20 mg for rheumatoid arthritis.
  • Several empirical studies have investigated the impact of the euro on FDI.
  • No interactions of Yttrium (90Y) chloride with other medicinal products are known because no studies have investigated this issue.
  • No interaction of Yttrium (90Y) chloride with other medicinal products are known, because no studies have investigated this issue.
  • In addition, Study V investigated the safety and efficacy of abatacept or infliximab relative to placebo.
  • For each crop to be investigated two studies per process shall be carried out to determine concentration and dilution factors in processed commodities.
  • However, the limited number of studies which have investigated the relationship between developmental effects and general maternal toxicity have failed to demonstrate a consistent, reproducible relationship across species.
  • In prospective published studies tacrolimus was investigated as primary immunosuppressant in approximately 175 patients following lung, 475 patients following pancreas and 630 patients following intestinal transplantation.
  • In prospective published studies oral Prograf was investigated as primary immunosuppressant in approximately 175 patients following lung, 475 patients following pancreas and 630 patients following intestinal transplantation.
  • The safety and efficacy of Avastin, in addition to platinum-based chemotherapy, in the first-line treatment of patients with non-squamous non-small cell lung cancer (NSCLC), was investigated in studies E4599 and BO17704.
  • These studies investigated the risk of suicidal behaviours (including completed suicides, suicide attempts and suicidal ideation) associated with the use of various antidepressants.
  • The 5 randomised studies investigated a total of 3734 patients with metastatic colorectal cancer, in whom EGFR expression was detectable and who had an ECOG performance status of <= 2.
  • The local safety of Vantas is sufficiently investigated and further comparative studies are not necessary.
  • The effectiveness of the products against the specified parasites was investigated in laboratory studies.
  • Possible interactions with other haematopoietic growth factors and cytokines have not been specifically investigated in clinical studies.
  • Interactions between Kineret and other medicinal products have not been investigated in formal studies.
  • Possible interactions with other haematopoietic growth factors and cytokines have not yet been investigated in clinical studies.

Alternatives:

  • research investigated
  • investigation studied
  • study has investigated
  • study looked into
  • study examined

Related Comparisons

How TextRanch works

Fast and reliable proofreading, editing, and language advice tailored to your needs.

1. Choose Your Service

Quick Text Editing

  • Emails and short texts
  • Proofreading & editing
  • Ready in 5-10 minutes
SUBMIT YOUR TEXT NOW

Document Editing

  • Documents of any type (*.docx)
  • Advanced & Premium editing
  • Ready in as little as 4 hours
UPLOAD YOUR DOCUMENT

Ask an Editor

  • Personalized answers to your language questions
  • Expert guidance on grammar, style, and usage
  • Ready in 24 hours
ASK YOUR QUESTION

Upload your document or paste your text directly into our platform. Your text is reviewed and refined by our expert editors (real people, not machines) who understand the nuances of English. Expect corrections, improvements, and insightful suggestions that enhance the clarity, tone, and professionalism of your writing.

In just a few minutes (or hours for longer documents), you'll receive your corrected text. Review the changes, make any final adjustments, and confidently share your polished English with the world.
You can count on a personalized, friendly service every time you use TextRanch. We're committed to helping you make a great impression with every word you write.

We proofread and edit these types of texts and documents:

Short texts Business Emails Personal Emails Social media posts Resume and Curriculum Vitae Business documents Sales proposal Research and academic papers Thesis Dissertation Essays Articles Blog posts and much more....

Powered By Humans

TextRanch Editors

AI is a great tool, but when it comes to perfecting your writing, we rely on real human editors.

  • All our editors are native English speakers.
  • Each editor has passed a rigorous admission test to ensure quality.
  • Our global team is ready to correct any text, anytime.

MEET OUR EDITORS

TextRanch Editors

Why choose TextRanch?

Complete Privacy

Your texts are safe and secure with us. We never share your information with third parties.

Affordable Pricing

No subscription fees and rates up to 50% cheaper than other online editing services.

100% Satisfaction

We guarantee that you'll be satisfied with the quality of our service or your money back.

Top Customer Service

Our team is here to help you with any questions you may have. Contact us anytime.

Our Customers Love Us!

We have an average rating of 4.79 stars based on 283125 votes, and

People Feedback 4.9 Excellent - Reviews 2.137

"7 years without any disappointment. Always 100% satisfied. You guys are the best in the world at what you do. Thank you so much :)"

Profile picture of Zubair from Bangladesh

Zubair
from Bangladesh From

"I wasn't aware of this service, it's fascinating and more reliable than standard IA tools available on the internet"

Profile picture of Arturo from Mexico

Arturo
from Mexico From

"In a world of text messages and online communication, this is great to have as a live tool. Thank you."

Profile picture of Selena from USA

Selena
from USA From

"Wow, it's just so excellent. I never would have believed I could have a sure and excellent English companion. Thanks, TextRanch."

Profile picture of Ifiok from Nigeria

Ifiok
from Nigeria From

"This is my first time using TextRanch, and I like how the editors take time to correct my text. To everyone who has never used TextRanch before, I highly recommend trying it."

Profile picture of Wilson from France

Wilson
from France From

"It is an amazing source of feedback because, as a non-native speaker, I really need to have a reliable helper correct my text."

Profile picture of Susan from Germany

Susan
from Germany From

Trusted by Hundreds Teams

Facebook logo
Accenture logo
Air Asia logo
AirBus logo
Amazon logo
Bayer logo
Decathlon logo
Docusign logo
Ebay logo
Fiverr logo
Fossil logo
Keller Williams logo
LinkedIn logo
Loreal logo
Motorola logo
Orange logo
Roche logo
Salesforce logo
Stellantis logo