How do you identify a subjunctive?

The subjunctive mood expresses hypothetical, wishful, or non-real situations and is often found in dependent clauses following certain verbs, adjectives, or conjunctions that indicate necessity, desire, or uncertainty. In English, it is typically identified by the use of "were" for all subjects in contrary-to-fact statements (e.g., "If I were rich...") and the base form of the verb after "that" in expressions of recommendation or urgency (e.g., "I suggest that he study"). In contrast, many other languages have distinct verb conjugations to indicate the subjunctive mood.