The present perfect simple is have/has + past participle. The past participle often end in -ed (finished/decided etc.), but many importantverbs are irregular (lost/done/been/written etc). When we use the present perfect there is always a connection with now. The action in the past has a result now. Where's your key? / I don't know. I've lost it. ( I haven't got it now ) He told me name but I've ..