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Supercat Posted 11 years ago
Grammar

Each other

What's the difference between each other and with each other?
e.g. They combine each other vs They combine with each other
  

Top answer

Only the second one makes sense.

  • Only the second one makes sense.
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3 Answers
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Only the second one makes sense.
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Suppose that the agents are X and Y, then "they combine each other" implies that "X combines Y" and "Y combines X". It is hard to think of any situation where this would make sense. Compare "they help each other", i.e. "X helps Y", and "Y helps X", which is fine.

"they combine with each other" implies "X combines with Y" and "Y combines with X", which is also fine.
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Ahh verb matters. I think I roughly understood. Thank you!

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