Explanation: The mood of a verb is the manner or attitude in which the action is expressed. Verbs can express facts, wishes, possibilities, or commands. A verb in the indicative mood expresses fact, opinion, assertion, etc. The imperative mood expresses a command, and the subjunctive mood expresses a wish or possibility. The given sentence is an example of subjunctive mood, "if I were" is expressing a possibility, not a fact.
