What is the difference between a past and a past participle?

Answer 1

The past from of a verb is the word you use to make a past simple sentence eg I walked to school.

The past participle is the form you use to make a verb phrase eg has walked, had walked. I had walked to work everyday.

For regular verbs the past and past participle are the same eg walked, listened, opened.

For irregular verbs the past participle can be:

the same as the verb and the past form -- cut, cost

the same as the past form -- fought, said

a new word -- ate, blown

Answer 2

A past tense verb indicates an action that has already happened, while a past participle is a form of the verb typically used in perfect tenses or passive voice. For example, "ran" is the past tense of "run," while "run" is the past participle of "run" in sentences like "has run" or "was run."