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to work upon
01
to dedicate time and effort to produce or fix something
Grammatical Information
Composition
phrasal
Action verb
Regular
Inseparable
Particle
upon
Base verb
work
Present tense
work upon
3rd person singular
works upon
Present participle
working upon
Past simple
worked upon
Past participle
worked upon
Examples
The mechanic worked upon fixing the car on the repair stand.
