Question

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

Answer 1

Here's your answer

The difference lies in how the word is put into past tense. Simple past tense verbs always have just one part. Past participle tense verbs have multiple parts and usually require an auxiliary verb, such as had, has or have. ... (For the verb “learn,” “learned” is both the simple past and past participle).
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