Pre + Position, i.e., the word or phrase which is placed before a Noun or Pronoun.
Rule: Generally, prepositions are used before their objects.
E.g., The book is on the table.
My daughter is very fond of grapes, apples and oranges.
Exception: But in the following situations Prepositions are used after the object.
(1) Preposition is used at the end of the sentence if the object is Relative Pronoun ‘That’.
e.g., This is the book that you asked for.
I know the man that you are talking to.
(2) If the object is a Hidden Relative Pronoun, then preposition is used at the end of the sentence.
e.g., This is the house I lived in.
This is the book you are looking for.
(3) In case the object is Interrogative Relative Pronoun (who, whom, whose, which, what); Preposition is used at the of the sentence.
e.g., What are you thinking of ?
Which of these houses do you live in ?
Omission of Prepositions
Rule 1: No preposition is used before the Object of the Transitive Verb.
e.g., I shall meet you again. (correct)
I shall meet with you again. (incorrect)
I read a book (correct)
I read in a book (incorrect)
Rule 2: It is wrong to use Preposition for, from, in, on etc. before Expressions of Place or Time.
e.g., I came here last week. (correct)
I came here in last week (incorrect)
Please wait a minute (correct)
Please wait for a minute (incorrect)
She is waiting outside (correct)
She is waiting outside (incorrect)
Rule 3: If qualifying word (such as this, that, next, every, last, all) comes just before some ‘Time denoting words’ (e.g. , morning, evening, day, night, month, year etc.); No preposition is used with them.
e.g., He came this morning.
He met me last evening.
He is coming again next Sunday.
Note: But if these ‘time denoting words’ come without the qualifying words, then Preposition is used with them.
e.g., He came in the morning.
He is coming again on Sunday.
Rule 4: No Preposition is used before Yesterday / Today / Tomorrow.
e.g., Please come tomorrow.
He is returning today.
He came yesterday also.
Rule 5: No Preposition is used before ‘Home’.
e.g., I go home every Sunday.
He is going home.
Rule 6: If the sentence has two verbs and it is essential to use Different Prepositions with them, then both the prepositions are used according to their verbs and No Preposition should be left.
e.g., I have been thinking about and waiting for you since the morning.
He has been looking for and enquiring after you for a long time.
Rule 7: Prepositions are never used with the following verbs:
Attack, Await, Accompany, Assist, Comprise, Investigate, Inform, Obey, Order, Reach, Resemble, Resist, Request, Violate.
America attacked on Iraq. (no ‘on’)
I await for your instructions. (no ‘for’)
I shall accompany with you. (no ‘with’)
I shall assist to you. (no ‘to’)
Rule 8: Some Verbs and Adjectives are never followed by Infinitive.
‘Preposition + Gerund is used with them. These are:
Abstain from, Aim at, Assist in, Based on, Confident of, Debar from, Desirous of, Desist from, Despair of, Disqualified from, Excel in, Excuse for, Fortunate in, Hopeful of, Insist on, Negligent in, Passion for, Perceive in, Persist in, Prevent from, Prohibit from, Proud of, Refrain from, Repent of, Succeed in, Think of
e.g., He is confident of winning the prize.
He insists on going there.
I cannot think of displeasing her.
I am fortunate in having a friend like you.