In an anticipative manner; in a way that shows or expresses anticipation and expectation.
From anticipative + -ly (adverb suffix). This adds another layer of modification, turning the adjective describing a quality into an adverb describing how actions or events proceed.
English learners notice that adding -ly makes adverbs, but anticipatively shows how we can stack it on -ive adjectives, creating really specific adverbs for subtle meanings that other languages might need entire phrases to express.
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