What are verbs that can be changed to have an ed suffix?

You're asking about verbs that can be changed to have an "-ed" suffix, which means you're talking about regular verbs.

Regular verbs are verbs that form their past tense and past participle by adding "-ed" to the base form.

Here are some examples:

* walk - walked

* play - played

* jump - jumped

* cook - cooked

* study - studied

* love - loved

* laugh - laughed

* help - helped

Note:

* Some verbs have irregular past tense forms and don't follow the "-ed" rule. For example, "go" becomes "went," and "see" becomes "saw."

* While most verbs use "-ed" for the past participle, some irregular verbs use "-en" instead. For example, "eat" becomes "eaten" and "give" becomes "given."

Let me know if you'd like to learn more about regular and irregular verbs!