Present Perfect

Present Perfect something that have just happened, is still go on or happened recently. The Present Perfect is used to indicate a link between the present and the past. The time of the action is before now but not specified, and we are often more interested in the result than in the action itself. Form: HAVE + past participle ( verb + ed or irregular verbs) (+) I've gone to Italy twice this year.(-) Sally hasn't seen Tom this week. She told me so yesterday.(?) Where have you been? I looked everywhere for you.