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was proving

  • past progressive
    of prove.
    prove
    verb (used with object)
    to establish the truth or genuineness of, as by evidence or argument.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Deckers Outdoor, in May, said its Ugg Zora line — which has the fluffy interior an Ugg boot in roughly the shape of a ballet shoe — was proving appealing to customers.

From MarketWatch Aug. 15, 2026

The next challenge was proving that its lithium level was genuinely unusual rather than normal for a star with similar characteristics.

From Science Daily Jul. 16, 2026

That color was proving arduous to re-create affordably, and at scale.

From The Wall Street Journal Jun. 18, 2026

The BBC heard from several people that the cost of living was proving a big challenge.

From BBC May 19, 2026

It happened because the work at Los Alamos was proving even more difficult than Oppenheimer had expected.

From "Bomb" by Steve Sheinkin