‘Not only …… but also’ is a correlative conjunction that connects two balanced words or phrases or parts of a sentence.
Rules of use –
It connects two balanced parts or words or phrases . That means there must be a parallel structure in the sentence or the parts of speech for each part must be the same.
When we connect two clauses which are complete sentences , we use a comma to separate them.
Examples – ( See the sentences and try to understand the structure)
Present Tense –
He not only plays cricket but also football .
Not only does she teach us well, but she also guides us well.
Susan is not only brilliant but also creative.
Past Tense –
Not only was it a good movie but also entertaining.
Not only did they perform poorly, but they also broke fans’ hearts.
Future Tense –
Not only will they visit the market but also the park.
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