Subject + 从不 + Verb
从不 (cóngbù) means "never," expressing that something has not happened at any time. It is a stronger and more emphatic way to negate habitual actions compared to 不 alone.
他从不迟到,每天都是第一个到办公室的人。
tā cóng bù chídào, měi tiān dōu shì dì yī ge dào bàngōngshì de rén.
He is never late and is always the first person to arrive at the office every day.
她从不在背后说别人的坏话。
tā cóng bù zài bèihòu shuō biérén de huàihuà.
She never talks behind other people's backs.
我爷爷从不喝酒,连啤酒都不碰。
wǒ yéye cóng bù hē jiǔ, lián píjiǔ dōu bù pèng.
My grandfather never drinks—he won't even touch beer.