So Because But Although

They are called conjunctions.

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• I was at home because my little brother was sick.

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• He broke his arm so I stayed at home for one week.​

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​Reason and Result

​So

Because

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​The conjunction ‘because’ is used to express the cause/reason.

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• ​Because I love pandas, I try to save them.

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Why do you try to save them?​

​​Because

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​The conjunction ‘so’ is used to express the effect/result.

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I love Earth so I tried to save it.

​​So

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They are not the same.

• ​Use but to show a contrast.

• ​“but” joins together two equally contrasting ideas.

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​​But

• ​Use although to show a contrast.

• ​“although” does not join together two equal ideas – one of the ideas is an unexpected result of the other clause.

• “despite the fact that”​

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​​Although