The sentences have been rewritten below in the present perfect continuous tense:
The present perfect continuous tense is used to show that an action from the past has continued up to now.
It usually follows the pattern, Subject + an auxiliary verb in the present tense + an auxiliary verb in the past tense + a present participle.
An example is, "They have been working all day."
"They" is the subject, "have", and "been" are the auxiliary verbs in the present and past tenses while working is a present participle.
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