Summary

Frank Edgar Farley An Advanced English Grammar with Exercises

Grammar, then, may be said to concern itself with two main subjects,—inflection and syntax.
English belongs to a family of languages—the Indo-European Family1—which is rich in forms of inflection. This richness may be seen in other members of the family,—such as Greek or Latin. The Latin word homo, “man,” for example, has eight different inflectional forms,—homo, “a man”; hominis, “of a man”; homini, “to a man,” and so on. Thus, in Latin, the grammatical construction of a word is, in general, shown by that particular inflectional ending (or termination) which it has in any particular sentence.
Source: Gutenberg

Frank Edgar Farley An Advanced English Grammar with Exercises

Each of these infinitives (to hope, to flatter, etc.) is a noun, for each is the simple subject of a sentence. Besides, an ordinary noun may be substituted for each infinitive with no change in meaning; as,—“Hope is our only resource”; “Flattery is not my custom”; “Sleep was an impossibility.”
But each of these infinitives is also a verb,—for (1) it expresses action; (2) it may be modified by an adverb, as in No. 5; (3) it takes an object if it is transitive, as in No. 6.
An infinitive (as the examples show) has regularly no subject and therefore lacks both number and person.
Source: Gutenberg

Frank Edgar Farley An Advanced English Grammar with Exercises

Although a proper noun is the name of a particular person, place, or thing, that name may be given to more than one individual. More than one man is named James; but when we say James, we think of one particular person, whom we are calling by his own name. When we say man, on the contrary, we are not calling any single person by name: we are using a noun which applies, in common, to all the members of a large class of persons.
Any word, when mentioned merely as a word, is a noun. Thus,—
And is a conjunction.
Source: Gutenberg

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