Have Already Make Or Made
But doesn't present perfect mean someting that happened in the past but may have a chance to happen again in the future?No. The action/event started before NOW.and may/might continue past NOW.' I have made my decision, and will not enter into further discussion. Now is the time for the company to act on that decision.' .
S NOW.where S is when I began to think about/discuss this matterand E is when my mind was made up, the final decision madeand NOW is the moment of speaking.NOTE:It could also be depicted as. S NOW.because there may be a short period of time between making the decision, and announcing it.Past tense.D.NOWIn the Past tense, the decision/deciding (D) is a finished, complete event prior to NOW.' He decided to take a year off and travel before going to Uni. He's overseas at the moment, but he will be back soon because university studies resume in two months.'
Have Already Make Or Made Of Paper
No, I don't think that is a good way to describe the present perfect.The present perfect tense, as its name suggests, always says something about the past and something about the present.In this case,- the statement about the past is 'I made a decision';- the statement about the present is 'I am now abiding by that decision in my actions'. (This is a guess - you have not provided enough context for me to be sure.)In other words, the present perfect is used because there is a continuing effect of the decision in the present. Present Perfect is a tense that doesn't exist in all languages.
For example, in Russian we never use it because Past Simple is fine for expressing the same things that are said in Present Perfect in English. Nonetheless this is not an advantage of Russian because English offers more opportunities for specifying the connection between past and present. Usually we use Present Perfect when we want to show that something that happened in the past is somehow connected with what is going on right now. We never use Present Perfect when the time point is indicated because in this case you need Past Simple or Past Perfect (sometimes):1) 'I have made my decision and now I want to go with them' - the decision was made in the past, but due to that decision he wants to go with them now.
For example they decided to go to the mountains but he is afraid of going there. However when they offered to go he thought a little and then decided he would go despite being afraid of them. The decision made in the past resulted in his going with them. Notice that in my sentence it's not mentioned when exactly the decision was made.
If I had specified the time I wouldn't have been allowed to use Present Perfect according to grammar rules.2) 'I made my decision yesterday and I would like to travel with them'. Here we have the word yesterday which prevents us from using Present Perfect.There are a number of words that usually go with Present Perfect: so far, already, yet, recently, for, since, ever, never, etc. At the same time we should remember that all rules have exceptions and even if one of these words is present the choice of tense is not always unambiguous.