A black shirt is a classic and practical piece that can be worn with a variety of lower body, and here are a few suggestions:1Black leggings: this is the most classic and practical way to wear it. The pairing of black leggings with a black shirt creates a simple yet stylish look that is perfect for any occasion. In order to increase the sense of fashion, you can choose a loose style shirt, showing a large picture and a small picture, looking thin and fashionable. 
2.Grey trousers: A combination of grey and black can create a business-like and understated look. Choose a pair of well-tailored gray trousers, pair it with a black shirt, and pair it with a pair of black leather shoes to show a mature and stable image. 3.Denim shorts: In the summer, you can choose a pair of denim shorts to pair with a black shirt. This combination creates a casual and stylish look, while also showing off the slender leg line. To add some feminine elements, you can choose some floral silk scarves as embellishments. 
4.Wide-leg pants: Choose a pair of wide-leg pants with a black shirt for an elegant and comfortable look. Opt for something soft and lightweight, such as silk or cotton, to add some comfort. At the same time, choose a pair of high heels or wedges to pair with wide-leg pants to make your figure more slender. 5.Short skirts: The combination of a short skirt and a black shirt can create a sweet and ** look. You can choose some bright colors to contrast with a black shirt, such as red or pink. At the same time, pair it with a pair of high heels or wedges to enhance the leg line. 
In short, a black shirt can be worn with a variety of bottoms, whether it is jeans, trousers, skirts or wide-leg pants. Choosing the right combination according to your preferences and occasion is key.