5 public-domain matches
Auxiliary Verbs
Ollendorff's New Method of Learning to Read, Write, and Speak the French Language with an Appendix Containing the Cardinal and Ordinal Numbers and Full Paradigms of the Regular and Irregular, Auxiliary, Reflecticve, and Impersonal Verbs by J. L. Jewett

On the auxiliary verbs in the Romance languages

"Shall," and "Will"
