had not undergone

USAGE SUMMARY

The phrase "had not undergone" is correct and usable in written English.
It can be used to indicate that something has not experienced a particular process or change in the past. Example: "The experiment showed that the sample had not undergone any significant alterations over the course of the study."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Rudy and Rennie had not undergone any cognitive assessments.

The New Yorker

Furthermore, despite some legal changes, social relations had not undergone revolutionary change.

Britannica

How could they recommend to their patients a "voluntary" test that they themselves had not undergone?

The New York Times

The girl's family insisted she had not undergone FGM but the doctor, Lindsey Mackintosh, reported a small lesion.

The Guardian

Her lawyer, Mohammad Hussain, described Ms Thompson, who had not undergone gender reassignment surgery, as a vulnerable transgender woman.

Independent

Only one patient had not undergone orthodontic treatment.

Progress in Orthodontics

All values are expressed as fold over control values from animals that had not undergone surgery.

Intensive Care Medicine Experimental

Eighteen patients with AIED who had not undergone cochlear implantation were studied in a separate IRB approved protocol (Table 2).

Plosone

µMT mice that had not undergone adoptive transfer were likewise infected with B. hermsii, as a control.

Plosone

Two patients had not undergone previous nephrectomy.

British Journal of Cancer

Consequently, these subjects had not undergone surgery.

Biomedical Optics Express

Expert writing Tips

Best practice

When using "had not undergone", ensure that the context clearly indicates what specific process or experience was absent. This enhances clarity and avoids ambiguity.

Common error

Avoid using "had not undergone" when a simpler past tense ("did not undergo") would suffice. The past perfect tense implies a sequence of events where one action preceded another in the past. If there's no such sequence, the simple past is often more appropriate.

Linguistic Context

The phrase "had not undergone" functions as a verb phrase, specifically the past perfect negative form of the verb "undergo". It indicates that a particular action, process, or experience did not occur before a specified time in the past. As stated in the Ludwig AI, the phrase is correct and usable in written English.

Expression frequency: Common

Frequent in

Science

68%

News & Media

23%

Encyclopedias

2%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "had not undergone" is a grammatically sound and frequently used verb phrase that indicates the absence of a specific process or experience prior to a certain point in the past. As Ludwig AI confirms, the expression is considered correct. It's most common in scientific, academic, and news-related contexts, and its proper use contributes to clarity and precision in writing. When using this phrase, consider whether a simpler past tense might be more appropriate and ensure that the context clearly defines what action or experience was absent.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

did not experience

Emphasizes the lack of direct personal involvement or feeling.

did not go through

Focuses on the absence of a process or procedure being completed.

was not subjected to

Highlights the lack of exposure to a particular treatment or event.

never had

Simple alternative phrase to express an action that never happened in the past.

lacked

Highlights the absence of something necessary or desirable.

remained untouched by

Suggests that something was not affected or altered by a certain influence.

was exempt from

Indicates that someone or something was officially excused from a requirement.

avoided

Focuses on intentionally preventing something from happening.

escaped

Emphasizes having avoided an undesirable situation or experience, usually referring to something negative.

was not exposed to

Highlights the lack of contact or experience with something, often a risk or influence.

FAQs

How can I rephrase "had not undergone" in a sentence?

You can use phrases like "did not experience", "did not go through", or "was not subjected to" depending on the context.

Is it better to say "did not undergo" or "had not undergone"?

"Had not undergone" is used to describe an action that was not completed before another action in the past. If you're simply stating that something didn't happen, "did not undergo" is often sufficient.

What does "had not undergone" mean in a medical context?

In a medical context, "had not undergone" typically means that a patient did not receive a specific treatment, procedure, or test. For example, "The patient "had not undergone" surgery prior to admission."

What are some common situations where I might use "had not undergone"?

You might use "had not undergone" when discussing medical treatments, scientific experiments, or any situation where the absence of a specific process is relevant. For example, "The sample "had not undergone" any pretreatment."