What is the correct way to make this sentence parallel?l According to some economists, neither high unemployment nor large deficits will keep the economy from rebounding.

There is no I before according* typo

Update: Can someone please help me quick?

Update never mind the it is correct.

Yes, that sentence is correct. No parallelism problems there.

is this correct parallel sentence: When the movie Star Wars premiered in 1977, it was both surprising and revolution in its special effects.

To make this sentence parallel, the construction for both alternatives should be consistent. In this case, the alternatives are "high unemployment" and "large deficits." To make them parallel, we need to use the same grammatical structure for both. Here's an example of how to do that:

"According to some economists, neither high unemployment nor large deficits will hinder the economy from rebounding."

In this revised sentence, we have changed "keep" to "hinder" to maintain parallelism. Both alternatives now follow the same structure of "[verb] the economy from rebounding." This makes the sentence grammatically balanced and parallel.