tested
- 1Simple past and past participle of test.
Engineers tested the bridge for structural weaknesses after the earthquake.
The vaccine had been tested on thousands of volunteers before approval.
Note
One -ed spelling does two jobs. Standing alone it is the finite past (they tested the water). After have or be it is the participle (it had been tested, it was tested on volunteers). It also carries the linking use, where something is shown by a test to be a certain way: the sample tested positive. The form even reaches back to the assayer's trade, where gold was tested in a cupel to refine it.
tested is a form of test
test, verb: To try out or examine something, often under real or extreme conditions, to find out how well it works, whether it is genuine, or whether it meets a standard. Full entry
- Spelling
- test → tested: add -ed
- Sound
- The ending sounds like /ɪd/, an extra syllable.
Use it in a sentence
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