The forms show great variety and must be learned by practice. (See [pp. 291–297] for a list.)

335. The perfect participle is made by prefixing having to the past participle.

336. The present participle is used in forming the progressive verb-phrases ([§§ 255–259]).

The past participle is used in forming the complete tenses ([§§ 242–244]) and the passive voice ([§ 247]).

CONSTRUCTIONS OF PARTICIPLES

337. Since the participle has adjective properties, its constructions are in the main like those of adjectives.

338. A participle is said to belong to the substantive which it describes or limits.

339. A participle should not be used without some substantive to which it may belong.