[*] 183. The Greek language has four moods proper. A mood is a tone given to the predication by the speaker or writer. These moods are the indicative, the imperative, the subjunctive, and the optative. The verb has also a nominal form, the infinitive, which is often called a mood, and an adjective form, which is called a participle. Of these moods the indicative alone expresses with uniform directness the relations of time, or tense, and as some of the modal uses cannot be understood without the use of the tenses, it is necessary to consider first the tenses.