Normally a prepositional phrase will begin
with a preposition and end with a noun, pronoun, gerund, or clause, the
"object" of the preposition.
The object of the preposition will often
have one or more modifiers to describe it. These are the patterns for a
prepositional phrase:
i.Preposition + Noun, Pronoun, Gerund, or Clause
ii.  Preposition +
Modifier(s) + Noun, Pronoun, Gerund, or Clause
Some examples of the basic
prepositional phrase:
        At home
        At = preposition; home = noun.
        In time
        In = preposition; time = noun.
        From Runa
        From = preposition; Runa = noun.
        With me
        With = preposition; me = pronoun.
        By singing
        By = preposition; singing = gerund.
        About what we
need
        About = preposition; what we need =
noun clause.
    Most prepositional
phrases are longer, like these:
        From my
grandmother
        From = preposition; my = modifier;
grandmother = noun.
        Under the Box
        Under = preposition; the,  = modifiers; box = noun.
        In the weedy,
overgrown garden
        In = preposition; the, weedy, overgrown
= modifiers; garden = noun.
        Along the busy,
two-lane highway
        Along = preposition; the, busy, two-lane
= modifiers; highway = noun.
        Without
excessively worrying
        Without = preposition; excessively =
modifier; worrying = gerund.
The function
of a prepositional phrase
    A prepositional phrase will function as an
adjective or adverb. As an adjective, the prepositional phrase will answer the
question Which one?
Examples:
        The book on the on the
table is white.
        Which book? 
         -The one on the table!
        The
sweet mangoes in the fruit bin are green with yellow stances.
        Which
sweet mangoes? 
          -The ones are in the fruit bin!
    As an adverb, a prepositional phrase will
answer questions such as How? When? or Where?
       Karim is stiff from yesterday's long cricket
practice.
        How
did Karim get stiff? 
         -From yesterday's long cricket practice!
        Before class, Jasim begged his friends
for a pencil.
        When did Jasim do his begging? 
           -Before class!
        I saw a man standing at a book stall in
Book fair
      Where
did you see the man?
       - at a book stall in Book fair
****Remember that a
prepositional phrase will never contain the subject of a sentence.
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