demonstrated
- 1Simple past and past participle of demonstrate.
The study demonstrated a clear link between sleep and memory.
Engineers demonstrated the prototype to a panel of investors.
Note
One spelling does two jobs. The simple past heads its own clause (they demonstrated the device), while the participle needs have for the perfect or be for the passive. Only the transitive meanings take the passive: a method, or the steps of a proof, can be demonstrated. The protest meaning is intransitive, so crowds demonstrated, or had demonstrated, but no one was demonstrated.
The new method was demonstrated to the whole department.
Thousands of students had demonstrated outside city hall by noon.
demonstrated is a form of demonstrate
demonstrate, verb: To show, display, or present something, or to prove it and make it evident. Full entry
- Forms
- demonstratedemonstrates he/she/itdemonstrating -ing formdemonstrated past tense, past participle
- Spelling
- demonstrate → demonstrated: add -d
- Sound
- The ending sounds like /ɪd/, an extra syllable.
Use it in a sentence
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