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to spiral down
/spˈaɪɚɹəl dˈaʊn/
spiral downward
spiral downwards
to spiral down
[phrase form: spiral]
01
to rapidly decline
Grammatical Information
Composition
phrasal
Action verb
Regular
Inseparable
Particle
down
Base verb
spiral
Present tense
spiral down
3rd person singular
spirals down
Present participle
spiraling down
Past simple
spiraled down
Past participle
spiraled down
Examples
The city 's air quality started to spiral down as industrial pollution increased.
