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          Infinitive Phrases

An infinitive is the word to plus a verb.
--Examples: to run, to swim, to think, to graduate,
to hypothesize, to criticize, to create


An infinitive phrase is an infinitive plus an
object or a modifier (adjective, adjectival
phrase, adverb, adverbial phrase)
--Notice that dictionary definitions of verbs are infinitive
phrases. For example, the definition of contemplate is to think carefully.

Infinitives
and infinitive phrases can function as nouns.

--To pass the test is Vang’s main goal. ------------------------To pass the class is a noun because it is
----------------------------------------------------------------------------the subject of the sentence.


--Vang hopes to pass the test.------------------------------------To pass the class is a noun because it is 
----------------------------------------------------------------------------the direct object of the sentence.



Infinitives and infinitive phrases can function as adjectives. As an adjective, an infinitive phrase will come directly after the noun it modifies.

--The best wayto pass the test is to study.---------------------To pass the test is an adjective
------------------------------------------------------------------------------because it describes way.




Infinitives and infinitive phrases can function as adverbs.
1) As an adverb, an infinitive phrase can come after the verb it modifies.

--Vang studied hard to pass the test.------------------------------To pass the test is an adverb
-------------------------------------------------------------------------------because it explains why Vang
-------------------------------------------------------------------------------studied.


2) Infinitives and infinitive phrases that function as adverbs can also begin sentences.  When an adverbial infinitive phrase begins a sentence, the infinitive phrase must be followed by a comma and an independent clause.

--To pass the class, Vang studied hard.

--To buy a house in Los Angeles, my sister needs a lot of money.

--To remodel his Kitchen, Charlie will hire a carpenter.


3) Infinitives and infinitive phrases that function as adverbs can also interrupt independent clauses.  When an adverbial infinitive phrase interrupts an independent clause, the infinitive phrase must be embedded by commas.

--Vang, to pass the class, studied hard.
--My sister, to buy a house in Los Angeles, needs a lot of money.

--Charlie, to remodel his Kitchen, will hire a carpenter.