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Help the news anchor summarize yesterday's rather ridiculous weather forecast.
Original quote: "It will rain frogs tomorrow!"
Yesterday, the forecaster warned that it _________________________ rain frogs ____________________________.
Yesterday, the forecaster warned that it would rain frogs the following day.
In reported speech with a past tense reporting verb ("warned"), the modal verb "will" changes to "would."
Time words also change to reflect when the speech is being reported. "Tomorrow" changes to "the next day" or "the following day" because the original "tomorrow" is no longer the speaker's current "tomorrow."