1、The past tense of "keep" is "kept," indicating an action or state that occurred in the past. This follows the common rule for forming past tense verbs, which is to add "ed" to the base form of the verb. However, with irregular verbs like "keep," the ending changes to "kept" instead of "keeped."
2、The past participle of "keep" is also "kept." It is used in perfect tenses and passive voice to indicate actions that have been completed or states that have been experienced. This is based on the rules for forming past participles and the historical development of the English language. Understanding and mastering these rules and the irregular forms of specific verbs is essential for learning and using English effectively.
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