Under the DSM-5, there are eight types of substance use disorders that doctors can diagnose. Caffeine is also listed as a substance-related disorder under DSM-5, however, it is not designated as a substance use disorder.2. Alcohol.
adverbs answer the questions-how ,why,when and where.ie,adverb of manner,adverb of purpose and reason,adverb of time and adverb of place.
To understand what the adverb modifies, we need to understand what an adverb is and look at some examples of adverbs, the parts of speech they modify, and the phrases and clauses that act like adverbs.