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Anonymous Posted 18 years ago
Grammar

"by" and "for"

What is the difference between By and For??. I am teaching ESL and I am havinf a hard time explaining when to use by and when to use for.
  

Top answer

As you have no doubt already discovered, preposition use in English is often highly idiomatic. You will need to show the sentences that are causing confusion to know which ones to use. Very generally: This is a painting by my mother - my mother painted it.

  • As you have no doubt already discovered, preposition use in English is often highly idiomatic.
  • You will need to show the sentences that are causing confusion to know which ones to use.
  • Very generally: This is a painting by my mother - my mother painted it.
  • This is a painting for my mother - it's a gift that my mother will receive
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3 Answers
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As you have no doubt already discovered, preposition use in English is often highly idiomatic. You will need to show the sentences that are causing confusion to know which ones to use.

Very generally:
This is a painting by my mother - my mother painted it.
This is a painting for my mother - it's a gift that my mother will receive
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Hi,
if you look them up in a dictionary, you'll see they are used in too many ways to give you an answer in a post. I think you should teach them together with the examples they are in, so you associate them with contexts and an examples.

I'll be home by midnight.
I have something for you.
It's used for checking the level of the fluid.
There's a lamp by the door.
What
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Hi Anon,
By, for, in, of, from and with are prepositions. It's not possible to to explain rules of usage wihtout a context. You need to give some examples so that we can see where your problems are.

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