for

The preposition “for” is one of the most common prepositions in English. Here are some reasons to use it. 

 

  • for a reason
  • for a benefit
  • for a purpose
  • for an amount of time
  • for money

Use "for" when there is a benefit or someone receives something.

  • I did this for you. 
  • These flowers are for you. 
  • My daughter made a cake for me. 
  • Who is this for? 
  • I need to get some gas for my car. 
  • What can I do for you? 
  • He married her for her money, not for love. 
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  • Blueberries are good for you.
  • I eat blueberries for my general health and well being. 

for = a purpose or a reason

  • I use a computer for work. 
  • I use a lawn mower for cutting the grass. (Notice the use of a gerund after “for.”) 
  • We use our cell phones for communicating with other people. 
  • People use credit cards for making purchases. 
  • What is this for? (What is the purpose of this thing?) 
  • A bicyclist wears a helmet for protection. 
  • Law are made for keeping people safe. 
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  • A turtle relies on its shell for protection. 
  • Animals use various methods for hiding themselves or keeping themselves safe from predators. 

for = an amount of time

  • He’s been on a phone call for 30 minutes. 
  • Mina has lived here for two years. 
  • They exercised for an hour this morning. 
  • For how long did they have to wait? 
  • How long did they have to wait for? (Notice “for” may come at the end of a question
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  • The movie lasted for two hours. 
  • How long have you been waiting for? 
  • He’s been at lunch for an hour. 

for = an amount of money

  • How much did you pay for your ticket? 
  • How much is a room at that hotel going for? 
  • What are you willing to pay for a used car? 
  • Bananas are selling for 89 cents per pound. 
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  • We paid 30 Euros for our train tickets. 
  • How much did they charge you for your stay at the hotel? 
  • How much did they charge you for? 
  • What is that going for? (How much is it?)