79. The moods of the verb (properly so-called) are the subjunctive, the optative, and the imperative. It is convenient however to rank the two verbal nouns, the infinitive, and the participle, along with them. The meanings of the moods and verbal nouns cannot well be discussed until we come to the chapters dealing with complex sentences.
The Moods of Verbs
D.B. Monro, A Grammar of the Homeric Dialect. Carlisle, Pennsylvania: Dickinson College Commentaries, 2014. ISBN: 978-1-947822-04-7. https://dcc.dickinson.edu/index.php/grammar/monro/moods-verbs