{The wind failing, | On the failure of the wind, | When the wind failed,} we lowered the sail.

345. A substantive, with a participle, may express the cause, time, or circumstances of an action.

This is called the absolute construction.

The substantive is in the nominative case and is called a nominative absolute.

Note. This construction is called absolute (that is, “free” or “loosened”) because the substantive is not in any one of the constructions (subject, object, apposition, etc.) which ordinarily attach nouns grammatically to other words in the sentence. Nevertheless, the whole phrase, though standing apart from the rest of the sentence, is in meaning an adverbial modifier of some verb.

346. The participle being is sometimes omitted in the absolute construction.

VERBAL NOUNS IN -ING (PARTICIPIAL NOUNS)

347. English has a large and important class of verbal nouns that end in -ing, and that serve as the names of actions.