Here are some examples:
* "He richly deserved the award." The verb here is "deserved," and "richly" emphasizes the extent to which he deserved it.
* "The tapestry was richly embroidered." The verb is "embroidered," and "richly" describes the quality of the embroidery.
* "The novel is richly imagined." The verb is "imagined," and "richly" describes the quality of the imagination used in the novel.
To find the verb for "richly," you need to look at the sentence as a whole and identify the action being described. Then, consider how "richly" modifies that action.