Let each pupil give an infinitive.
The infinitive and the preposition to constitute a phrase, which may be employed in several ways.
+T+.—I have a duty to perform. The infinitive phrase modifies what?
+P+.—The noun duty. +T+.—It then performs the office of what? +P+.—Of an adjective modifier.
+T+.—I come to hear. The infinitive phrase modifies what? +P+.—The verb come. +T+.—What office then does it perform? +P+.—Of an adverb modifier.
+T+.—To lie is base. What is base? +P+.—To lie. +T+.—He attempted to speak. What did he attempt? +P+.—To speak. +T+.—To lie is a subject, and to speak is an object. What part of speech is used as subject and object? +P+.—The noun.
+T+.—The +Infinitive+ phrase is used as an +adjective+, an +adverb+, and a +noun+.
Infinitives may be completed by objects and attributes.
+Analysis and Parsing+.
+Model+.—David hasted to meet Goliath.