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to worry at
01
to constantly shake or bite something, often with a pulling motion
Grammatical Information
Composition
phrasal
Action verb
Regular
Inseparable
Particle
at
Base verb
worry
Present tense
worry at
3rd person singular
worries at
Present participle
worrying at
Past simple
worried at
Past participle
worried at
Examples
The dog worried at the bone, trying to break it into smaller pieces.
02
to attempt to solve a problem through extensive thought and consideration
Examples
She worried at the math problem for hours until she finally found a solution.
