"跑步" is a verb in Engpsh. To say "run" in the present tense, you can say "I run" or "he/she/it runs". To say "run" in the past tense, you can say "I ran" or "he/she/it ran". Here are some examples of how you can use "run" in a sentence:

I pke to run every morning to get some exercise. (present tense)
She ran a marathon last weekend. (past tense)
He is training for a 5K run next month. (present tense)

You can also use "run" as a noun to refer to the act of running or to a specific instance of running. For example:

Running is a great way to stay fit. (noun)
She went for a run in the park this morning. (noun)

I hope this helps! Let me know if you have any other questions.