Past simple vs. Present perfect Grammar

Past simple (vt) To express the idea that an action started and finished at a specific time in the past. Sometimes, the speaker may not actually mention the specific time, but they do have one specific time in mind. Regular verbs: + ed Yesterday we danced at the party. Irregular verbs: 2nd “row “ Yesterday we went to the party. Interrogative: Did + heel ww Did you go to the party yesterday? Negative: Did + not + heel ww We did not go to the party yesterday. Signal Words: Yesterday, last (night, week, etc.), (a minute, an hour) ago, in 2014

Present perfect To talk about unfinished actions that started in the past and continue to the present. Have + past participle Have we met before? Has (he/she/it) + past participle He has worked here since 2010. Regular verb: + ed I have lived here for ten years. Irregular verb: 3rd “row” She has never seen him before. Signal words: for (al), since, yet, just, already, never, ever.

Practice: past simple of present perfect? 1. My parents __________ (run) their own hotel for thirty years. 2. Last year I __________ (give) my first concert. 3. __________ you __________ (talk) to her yesterday? 4. I __________ never __________ (understand) English. 5. __________ she ever __________ (go) to London? 6. Last summer we __________ (camp) at a campsite in France. 7. We __________ (be) waiting here for hours. 8. The last time I __________ (dance) was in 2012. 9. We __________ (live) here since 2012.