A conjunction joins words, phrases, or clauses, and indicates the relationship between the elements joined. Coordinating conjunctions connect grammatically equal elements: and, but, or, nor, for, so, yet. Subordinating conjunctions connect clauses that are not equal: because, although, while, since, etc. There are other types of conjunctions as well.

Comma before and after conjunctions
Comma after so When so is used to mean therefore, it is a transitional adverb. So, it should be followed by a comma. I was not feeling well. So, I...
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according to
According to X means ‘in X’s opinion’, ‘if what X says is true’.According to Harry, it’s a good film.The train gets in at 8, according to the...
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prepositions (1): introduction
meanings and use It is difficult to learn to use prepositions correctly in a foreign language. Most English prepositions have several different...
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Linking structures (cohesive devices)
Using a wide range of vocabulary will help you speak more comprehendible and look more natural. Don’t fear: you don’t have to learn...
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