不曾 (bù céng): ยังไม่ได้

I've lived here for ten years and have never seen such a beautiful snow scene.

He has never left his hometown since childhood, so he knows nothing about the outside world.

Although we have never met, after a few phone calls, it feels like we are already old friends.

This old shop has been in business for thirty years, and its prices have never gone up, attracting many regular customers.