How can you use the word worst in a sentence as adverbs?

You can't use "worst" as an adverb. "Worst" is the superlative form of the adjective "bad."

To use it as an adverb, you would need to use the word "badly," or another synonym of "bad."

Here are some examples:

Incorrect: "He played the worst in the entire game."

Correct: "He played the worst of the entire game." (using "worst" as an adjective)

Correct: "He played badly in the entire game." (using "badly" as an adverb)

Incorrect: "The movie was worst than I expected."

Correct: "The movie was the worst I've ever seen." (using "worst" as an adjective)

Correct: "The movie was worse than I expected." (using "worse" as a comparative adjective)

Correct: "The movie was badly made." (using "badly" as an adverb)