PRESENTWe use the present perfect tense to PERFECT talk about things where there is a connection between the past and the future. He started writing books at some time in the past. So far, he has written 16 books. He may write more Action books. completed at some point in the past There is a result in present NOW fAS WELL AS THE PRESENT Ihave seen that movie already (we don't know when). - The Simple Past is used when the time is clear: i.e. I saw that movie on Thursday (we know exactly when). - The Present Perfect is used with 'for' and 'since', when the actions have not finished yet: i.e. I have lived in London for 5 years (I still live there). Whenlearning English, you generally come across these two terms: progressive and continuous. First, you need to realize that these are terms for certain verb tenses. They always consist of a form of ' to be ' (' am, is, are, ' etc.) as well as a verb in the ing-form ( present participle ). Information: This explanation only deals with HelloKhangvo2812, Generally, we use the present perfect (I have moved in) when an action in the past (moving in) has a present result or effect (here I am/I'm your new neighbour).We use the past simple (I moved in) when an action is solely in the past without any present echo.However, for very recent actions in the past with just there is a difference in British and American English. Toformulate the simple past tense verb, we add '- ed'. For verbs ending in 'e', we add '-d' and. However, there are some simple past tense verbs such as cut, put, set etc which remain the same in the present and past tense. Examples are, He worked at the Cheesecake Factory. I often brought my lunch to school. Pastperfect simple or past perfect continuous? - English Grammar Today - a reference to written and spoken English grammar and usage - Cambridge Dictionary .

difference present perfect and present perfect continuous