What is the past tense and participle of bread?

The verb "to bread" is not a standard English verb. Therefore, it doesn't have a past tense or participle in the traditional sense.

However, if you're talking about the process of coating food in breadcrumbs, you might say:

* Past tense: breaded (e.g., "I breaded the chicken last night.")

* Past participle: breaded (e.g., "The breaded chicken was delicious.")

It's important to note that these are not formal grammar terms, but rather common usage in the culinary context.