It is important to understand that not all verbs can be used in the continuous form. We will refer to these verbs as «Non-continuous Verbs». Another thing which is particular about verbs and the continuous forms is that some verbs that can be used in both the simple and perfect forms and also in the continuous forms have two different meanings.

Verbs that are physical actions which you can see someone doing can be used in all forms and with all tenses; run, walk, eat, read, fly, say, touch etc. can be used in all tenses.

More: https://www.ecenglish.com/learnenglish/lessons/non-continuous-verbs