Preposition
Definition
A preposition is usually a short word placed before a substantive (or a pronoun) and indicating the relation of
that substantive to other parts of the sentence (mostly verbs).
Example
"I was reading a book in the living-room."
The preposition “in” specifies, where exactly “I was reading a book”. It is placed directly before the noun
“living-room” (not counting a sometimes optional article like “the”).
Categories
Prepositions, as a class of words, can be divided in five categories.
   1.   Preposition of time (temporal) e.g. in, on, at, etc.
   2.   Preposition of place (spatial) e.g. in, on, at, etc.
   3.   Preposition for direction e.g. to, towards, into, through etc.
   4.   Preposition for device, instrument or machines e.g. on, by, with, etc. and various semantic roles e.g. of,
        for, etc.
This classification is not disjunct: a lot of preposition fall in more than one group, e.g. “in” can be used for “in
the car” (spatial) or for “in five years” (temporal).
There is some overlap with transitions words, conjunctions and linking words in general. Keep in mind, that the
main purpose of a preposition is the determination of the relationship in time or place. Thus, contrary to other
“small words”, they are not an element of style, but absolutely mandatory.
To find the correct preposition is difficult, even for advanced ESL speakers, since a 1:1 translation from your
mother tongue is usually wrong. To make matters worse, no real rules exist, when to use which preposition. So
the only way is, to memorize them. As always, reading books or watching movies helps a lot.
The following lists contain some of the most frequently used prepositions in English.
Prepositions – Time
   English                 Explanation / Meaning                                   Examples
                                                                       on Sunday; on May 1st; on Christmas
       on            days (of the week) & dates                       Eve; on my mark; on the weekend
                                                                        (AmE.)
                                                                   
       in
                        months / seasons / year                          in summer / in July / in 2017
                        part of the day                                  in the evening
  English             Explanation / Meaning                                Examples
                   after a period of time                      in an hour; in the future
                                                          
                                                           
               
                                                               at 11:15 p.m.; at half past six
                   a specific point of time
     at                                                       at noon; at night; learned English at 42;
                   exceptions (question: "When ...?")
                                                               at the weekend (BrE.); at first glance
               
                                                           
                  from a specific point in time until
     since                                                   since 1980; since yesterday
                   now (past till now)
     until                                                   until Monday; I’ll wait to call my
                  up to a certain point in time
      (till)                                                   manager until I hear from the client
     for         over a certain period of time              for the first time in forever; for 3 years
                  from now to a specific point in the
     ago                                                     a second ago; a decade ago; a while ago
                   past (now till past)
                  throughout the course or duration of       during summer; during the vacation;
     during
                   s.th.                                       during the discussion
                                                              before winter; before dawn; I have to talk
     before      previous to in time; earlier than
                                                               to the client before I call my manager
                  Subsequent in time; at a later time
     after                                                   after midnight; after tomorrow
                   than
     to /
                  telling the time                           ten to two (1:50) / ten past two (2:10)
      past
     from /
                  a starting point / an end point            from the beginning; from now to eternity
      to
     by          not later than                             by 12 o'clock; by next week
Prepositions – Place
  English             Explanation / Meaning                               Examples
                                                              in London; in the book, in the mirror; in
     in          position or state inside sth.
                                                               love
                                                          
                   in the area of ...; specific position       at home; at the table; at my side
     at
                   an event (or a place related to it)         at the party; at the cinema; at school
                                                          
                                                          
     on           position above                              on the desk; on my shoulder
                   in contact with                             on the wall; on the water
                   a certain side (left, right)                on the left side; on the bright side
  English                  Explanation / Meaning                                Examples
                        the state or process of                     on leave; on fire; on the way
                                                                    on the phone; on TV; on the menu
                        means of conveyance                         on trains; on the bus; on a plane
                                                               
                                                                   off the table; off the wall; went off to
     off              from a place or position                    Canada; got off the bus; turned off the
                                                                    TV
     by,
                       at the side of; close to, next to          by the door; beside the car; stand by me
      beside
                       in a lower position; beneath the
     under                                                        under the table; under water
                        surface
                                                               
                        in or at a position above                   put sth. over a shirt; walk over sth.; over
     over                                                          my dead body
                        more than                                   over 100 years; over ten miles
                                                               
                                                                   below the surface; below 20°; below the
     below            in or to a lower place; beneath
                                                                    clouds
                                                                   above the door; the clouds above; the
     above            higher than sth. else; overhead
                                                                    problems cited above
     up               from a lower towards a higher point        up the hill; up there is a …
                                                                   rolled down the hill; walking down the
     down             a descending direction
                                                                    street
Prepositions – Direction / Movement
  English                   Explanation / Meaning                               Examples
   across              on, at, to or from the other side         across the street; lines across the paper
                                                                   through the tunnel; a tour through
     through           from one end or side to another
                                                                    France
                    
                                                                
                          in a direction toward a person or
                                                                     go to bed; move on to; face to face; to
                          thing
     to                                                             the entrance
                                                                     back to health; all the way to; to die for
                          toward a (given) state
                                                                
                    
                                                               
     into                movement to the inside or interior         went into the kitchen; crashed into a
                          of                                         tree
                          to the condition, state, or form of        breaking into pieces; go into banking
  English                   Explanation / Meaning                                  Examples
                                                                 
                    
                                                                  
                          movement from the inside to the
                                                                       drag myself out of bed; out of nowhere
                          outside
     out of
                          no longer in the condition, state, or
                                                                       out of town; out of order; out of fashion
                          form of
                                                                  
                    
     onto              movement to the top                         jumped onto the table
                        movement in the direction of; or            towards the house; toward the future;
     towards
                         closer to                                    toward peace
                                                                 
                          a starting point; movement away              walked home from the station; traveled
                          from                                         from NY to LA
     from
                                                                       a note from the teacher; know right
                          a source, a cause; a distinction             from wrong
                                                                 
Other important Prepositions
 English                   Explanation / Meaning                                  Examples
                       originating from, composed of,               men of the north; a cup of coffee; the
     of
                        associated with, belonging to                 hand of God; that friend of yours
                                                                     a book by Mark Twain; by myself;
                       in the name of; through the agency or
     by                                                              played by the rules; killed by a bullet;
                        action of
                                                                      one by one they left; by car, by bus
                                                                 
                        estimation of quantity                        about ten people; about five minutes;
                                                                      about two miles
     about
                        on the subject of                             a book about English
                        ready to do sth.                              the chorus is about to sing
                                                                 
                                                                     happy for you; for sale; eager for fame;
     for              indicates the object, aim or purpose
                                                                      for one thing, …; for heaven's sake
                                                                     with a friend; with cheese; with
     with             in the presence or use of                     confidence; with a lot of …; will be with
                                                                      you shortly; from Russia with love