, "in a long while", "in a dog's age", "in ages" are restricted to the idea of time in the past extending to the present moment. They are therefore restricted to use with the perfect tenses and used almost exclusively with the present perfect. Another feature of these idioms is that they occur almost exclusively with the superlative form (-est form or the form with "most") of adjectives or adverbs, and with the word "first".
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