I have learned that 1_______ shows that an action started and completed in the past that has a specific time expression. The 2._________ verbs form the simple past in adding 3._________. The irregular verbs are common verbs that do not follow the simple system of adding "d" or "ed" to the end of the word to form the past tense or past participle. The 5._________ is used to talk about actions that were completed before some point in the past. It is also good to know that the Past Perfect Tense is formed by combining had with the past participle of the main verb.
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I have learned that 1_______ shows that an action started and completed in the past that has a specific time expression. The 2._________
Answer:
comprehension
Explanation:
Actually I don't know the answer