Past tense of diagnose
regular verb
The past tense of diagnose is diagnosed. The past participle is also diagnosed.
Forms of diagnose
| Base form (V1) | diagnose /ˈdʌɪ.əɡˌnəʊz/ |
|---|---|
| Past tense (V2) | diagnosed |
| Past participle (V3) | diagnosed |
| Present participle | diagnosing |
| Third person singular | diagnoses /daɪəɡˈnəʊsiz/ |
Diagnosed in a sentence
- Patients diagnosed more recently are probably surviving an average of longer than two years.From the entry than
- The patient was diagnosed after displaying both aerophobia and acute hydrophobia.From the entry aerophobia
- Most of the pseudopatients were falsely diagnosed with mental disorders.From the entry pseudopatient
- The patient was diagnosed with argininosuccinic aciduria.From the entry argininosuccinic
- He was diagnosed with subcortical dementia.From the entry subcortical
Meaning of diagnose
- verb To determine which disease is causing a sick person's signs and symptoms; to find the diagnosis.
- verb To determine the cause of a problem.
Questions about the past tense of diagnose
- What is the past tense of diagnose?
- The past tense of diagnose is diagnosed.
- What is the past participle of diagnose?
- The past participle of diagnose is diagnosed.
- Is diagnose a regular or irregular verb?
- Diagnose is a regular verb: its past tense adds -d.
Source and license
Adapted from Wiktionary: diagnose (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.
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Cite this page: “Past tense of diagnose.” Word.ws, https://word.ws/past-tense/diagnose. Based on Wiktionary, CC BY-SA 4.0.