English Daily Workout: Exercise on Difference Between Conjunctions & Prepositions

Exercise on Difference Between Conjunctions & Prepositions



What's the difference between conjunctions and prepostions?
How do we use them?

Certain words, such as afterbeforesince and until may function either as prepositions or subordinate conjunctions. However it should be noted that in some cases different words must be used as prepositions and subordinate conjunctions, in order to express similar meanings. This is illustrated in the table below.
Differing Prepositions and Conjunctions


MeaningPrepositionConjunction
  for this reason  because of  because
  in spite of this  despite  although
  at the time when  during  while
  in a similar way  like  as if

In the following examples, the objects of the prepositions, and the verbs of the subordinate clauses are underlined.
      Preposition: They were upset because of the delay.
      Conjunction: They were upset because they were delayed.

      PrepositionDespite the rain, we enjoyed ourselves.
      ConjunctionAlthough it rained, we enjoyed ourselves.

      Preposition: We stayed indoors during the storm.
      Conjunction: We stayed indoors while the storm raged.

      Preposition: It looks like rain.
      Conjunction: It looks as if it will rain.


In the above examples, it can be seen that the prepositions because ofdespiteduring and like have the noun objects delayrain and storm; whereas the subordinate conjunctions becausealthoughwhile and as ifintroduce subordinate clauses containing the verbs were delayedrainedraged and will rain.

It should be noted that like is sometimes used as a subordinate conjunction in informal English.
e.g. It looks like it will rain.
However, this use of like is considered incorrect in formal English.








Key 
1. although 2. despite 3. because 4. like 5. while 6. during 7. as if 8. because of 9. while 10. like 11. despite 12. because 13. as if 14. during 15. Although 16. Because of


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