Introductory it is a
word that is used in sentence, not influence the since of a sentence, because
the since has been carried by the other element’s sentence.
-When the subject is
an infinitive phrase
Structure: It + verb
+ subject complement + infinitive phrase (real subject)
Ex: It is difficult
to know his motive. (= To know his motive is difficult.)
-When the subject is
a gerund phrase
When the real subject
is a phrase that includes a gerund, it is used as a provisional subject to
begin the sentence
Ex: It is no fun
having so many children to look after. (= Having so many children to look after
is no fun.)
Note that it is
possible to change the gerund into an infinitive.
Ex: It won’t be any
good for me to complain to the manager.
-When the subject is
a clause
When the subject is a
clause, the sentence usually begins with it.
Ex:It is required
that he should pay the fine. (= That he should pay the fine is required.)
-Introductory it with
seem, appear and look
Introductory it is
also used with seem, appear and look when the subject is an infinitive phrase,
a phrase with a gerund in it or a clause.
Ex: It looked
doubtful whether she would come
-Introductory it as
an object
It is sometimes used
as the object of the verbs think, feel, deem, count, consider, etc
Structure: subject +
verb + it (object) + object complement + infinitive phrase/ clause (real
object)
Ex: I think it a pity
that she could not win.
-Introductory it in
questions
The introductory it
is sometimes used in questions.
Ex: Who was it that
broke the window?
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