Sentence examples for it was not only from inspiring English sources

"it was not only" is a grammatically correct phrase that can be used in written English.
It is typically used to introduce an additional point or factor that is considered important. For example: - "It was not only her intelligence that impressed me, but also her kindness." - "It was not only the chicken that was overcooked, but also the vegetables." - "It was not only the scenery that took my breath away, but also the warm hospitality of the locals."