The present perfect tense follows this structure:
For example:
present perfect = subject + have/has +past participle.I have eaten all the rice. She haseaten all the vegetables.past perfect = subject + had + past participle.I had walked to town. She had caughtthe bus to town.future perfect = subject + will + have + past participleI will have left town by then.All these sentences use the past participle ( in italics) the use of the other words (in bold) determines what tense the sentence is.
Present perfect progressive and present perfect continuous refer to the same tense and are often used interchangeably. Both tenses indicate an action that started in the past and is ongoing or has just been completed. The choice between "progressive" and "continuous" is mainly a matter of dialect or personal preference.
change the tense of the verb.past simple I walked to school. I ran home.present simple I walk to school. I run home.past continuous I was reading a book.present continuous I am reading a book.past perfect I had seen her today.present perfect I have seen her today.past perfect continuous I had been waiting for hours.present perfect continuous I have been waiting for hours.
The past perfect tense uses the past tense of the auxiliary verb 'have' - had.
Present tense - am, is and are. Past tense - was and were.
Doesn't have one-can be used for all. Used in combo with other words to determine tense. Was up-past. Is up-present. Will be up-future.
Present tense - clean. Past tense - cleaned. Present tense - work. Past tense - worked. Present tense - play. Past tense - played.
Depending on how you use the words some are already in the past tense. Got is the past tense of get. Present: I will get a dog. Past: I got a dog. With is a general term. It doesn't change in the past tense. Had is the past tense of has and had. Depending on which style of past you are using [progressive, perfect, progressive perfect, simple] will dictate how you use the word.
The past perfect tense is created with the auxiliary verb had and a past participle.Examples:The past perfect tense of walk is had walked. (Walk is a regular verb, so the past tense and past participle are the same.)The past perfect tense of break is had broken. (Break is an irregular verb. The past tense is broke, and the past participle is broken.)
No its not it is a past tense word. Come is a present tense words. The difference is the a and o in the middle.
This year is present tense. Last year is past tense. Next year is future tense.
The tense of a verb indicates relative time (and may also provide other information). Relative time has nothing to do with any actual length of or point in time. In English the main groups tenses are: # Present # Past # Future Present Tense Group I answer questions on wiki.answer.com - in other words, I do that regularly. (Simple present) I am answering your question - in other words, here and now as I type. (Present continuous) Yes, I do answer questions - contradicting a claim that I don't do so, for example. (Present emphatic) Past Tense Group I replied to his letter. In other words, the event is over and done with. (Simple past) I have written to him. In other words, the action is still relevant - perhaps I expect a reply, for example. (Perfect tense - or more commonly and confusingly, the 'present perfect') I had warned him before that happened. In other words, A happened before B. (There is also a pluperfect continuous: I had been thinking about that, when ...) Future Tense Group You will fly to London soon. You will be flying ... You will have been flying ... Please note that I have simplified this explanation!