Present Perfect Simple
| Description: |
| An action started in the past and continues up to the present. An action happened in the past and is important at the present. |
| Signal Words: |
| already, ever, never, since 2005, for five years, just, yet, so far, up to now, until now |
| Positive: have/has + 3rd verb form |
| Up to now I have never done my homework. I have lived in New York since 1995. He has already told me about your new girlfriend. |
| Negative: haven't/hasn't + 3rd verb form |
| He hasn't been there for five years. You haven't bought eggs, but we need them for dinner. I haven't told you to take a break yet. |
| Question: have/has + 3rd verb form |
| Have you ever seen an alien? Where have we left our car? I can't find it! Have they ever been in Los Angeles? |