a. I have been here since 1990.
b. I am here since 1990.
c. I am here.
d. I have been here.
Now my questions are as follows:
1. Is it possible to use 'b.' in speaking?
2. Do 'a.' and 'b.' express the same meaning?
3. Should I use them interchangeably?
4. What should I question the sentence 'c.'? where are you or how long?
5. What should I question the sentence 'd.'? where are you or how long?
roky0071 a. I have been here since 1990. b.
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roky0071a. I have been here since 1990.
b. I am here since 1990.
c. I am here.
d. I have been here.
Now my questions are as follows:
1. Is it possible to use 'b.' in speaking?
2. Do 'a.' and 'b.' express the same meaning?
3. Should I use them interchangeably?
4. What should I question the sentence 'c.'? where are you or h