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There are some examples of Present Perfect Tense: I haven't seen her today. My phone's run out of battery. Can I use yours? Have you ever dyed your hair a different colour?
We use the Present Perfect Simple for: *something that is true in the present: *something that happens regularly in the present *something that is always true:
Present Perfect Simple is used to say what we've done in an unfinished time period
We use the present perfect simple (have or has + past participle) to talk about past actions or states which are still connected to the present.
Present Perfect simple is used to refer to actions that were completed in a time period before the present time.
