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.
An adverb can be added to a verb to modify its meaning. Usually, an adverb tells you when, where, how, in what manner, or to what extent an action is performed. Many adverbs end in ly â particularly those that are used to express how an action is performed.