Present Perfect Tense - . Irregular verbs have special past...

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Present Perfect Tense Present perfect tense describes an action that happened at an indefinite time in the past or that began in the past and continues in the present. This tense is formed by using has / have with the past participle of the verb. Most past participles end in -ed
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Unformatted text preview: . Irregular verbs have special past participles that must be memorized. The researchers have traveled to many countries in order to collect more significant data. At an indefinite time Women have voted in presidential elections since 1921. Continues in the present...
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