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to spark off
[phrase form: spark]
01
to start an action or reaction
Grammatical Information
Composition
phrasal
Action verb
Regular
Separable
Particle
off
Base verb
spark
Present tense
spark off
3rd person singular
sparks off
Present participle
sparking off
Past simple
sparked off
Past participle
sparked off
Examples
His speech unintentionally sparked off a heated debate among the participants.
