"such as"后面接动词时，通常使用 动名词形式，也就是动词的-ing形式。例如：

1. She enjoys activities such as swimming, hiking, and biking.

2. Many kids help their parents with chores, such as doing the dishes, cleaning the living room and taking out the rubbish.

虽然"such as"后面也可以接动词原形，但这不太常见。例如：

1. Don't do anything silly such as marry him.

总的来说，"such as"后面接动词的动名词形式更为常见。