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Anonymous Posted 10 years ago
Grammar
Present Perfect vs past simple
Honestly I Search a lot but i could not understand which one of tenses (PP or PS) should i use for reporting something that I have done or did in the past. For example ,
their investigation have presented/ presented a more general model of economy.
We have used/used multiple Gaussian Functions in different positions with different sizes
I simply does not know where to use Present Perfect and where past simple. my reason to use PP is that i did something and it result is continuing by now for example i used multiple Gaussian function and its result is still persisting.
or a better example, we have simulated the model and we have got same results.
Best regards
their investigation have presented/ presented a more general model of economy.
We have used/used multiple Gaussian Functions in different positions with different sizes
I simply does not know where to use Present Perfect and where past simple. my reason to use PP is that i did something and it result is continuing by now for example i used multiple Gaussian function and its result is still persisting.
or a better example, we have simulated the model and we have got same results.
Best regards
Top answer
As you say, you can bring the feel of the action close to or into the present using "have". This can have some implications. 1.
- As you say, you can bring the feel of the action close to or into the present using "have".
- This can have some implications.
- 1.
- We have used/used multiple Gaussian Functions in different positions with different sizes When you used "used" here, it carries a sense that you've had more time to reflect on the results, whereas "have used" by bringing it to the present means it's still new and can have a feel that you might or are ready to revise your thoughts/conclusions.
- 2.
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1 Answers
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As you say, you can bring the feel of the action close to or into the present using "have". This can have some implications.
1. We have used/used multiple Gaussian Functions in different positions with different sizes
When you used "used" here, it carries a sense that you've had more time to reflect on the results, whereas "have used" by bringing it to the present means it's still new
1. We have used/used multiple Gaussian Functions in different positions with different sizes
When you used "used" here, it carries a sense that you've had more time to reflect on the results, whereas "have used" by bringing it to the present means it's still new
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