+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_.

David | hasted
==========|===========
| \to
\ meet | Goliath
\----------------

+Analysis of the Infinitive Phrase+.--_To_ introduces the phrase; _meet_,
completed by the object _Goliath_, is the principal part.

+Parsing of the Phrase+.--_To_ is a preposition, because ----; _meet_ is a
verb, because ----; _Goliath_ is a noun, because ----.