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IS it ok to say the following considering the strict tense grammar of English: Since beginnig of the last week, I have tried telephoning you so many times
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Since the beginning of the last week, I have tried telephoning you (so) many times.
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'The beginning of last week', following 'since' marks the starting point of the time during which the actions took place. That time extends to the present moment. A time period extending from the past up to the present is typical background for a present perfect.
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Thank you very much indeed. Sth which makes me confused for using present perfect is that we`re not supposed to use a definite date with it, here in the mentioned example "beginning the last week" can`t be taken as a definite date?
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Mohamadreza0Sth which makes me confused for using present perfect is that we`re not supposed to use a definite date with it, here in the mentioned example "beginning the last week" can`t be taken as a definite date?
That is not a true statement. With a "since" clause, we can use past markers. i.e. I have been a Beatles fan since I was 10 years old ( you are 25 now). However, we can't say " I have been a Beatles fan 10 years ago".
These are correct patterns:
1) I have tried to call / calling you since ....( past time marker..i.e. yesterday, last week ) but you didn't answer.
2) I have tried calling you several times, but you didn't answer. ( no since-clause, no time marker required).
3) I have called / phoned you many times with no answers.
#2 and #3 are similar pattern which is not time marker sensitive.