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I have been working here since is the most popular phrase on the web.

I am working here since 110,400 results on the web	I have been working here since 167,400 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Joe has been working here since 1996 and his salary has not been raised a nickel. I've been working since seven o'clock this morning. I mean, Crystal's been working here since before carrots were a juice. I started working since I was 16. You been working here since day one, and you didn't know her that well? You guys, I am working here. I've been working here since your father started the company. We're working since seven in the morning.	Both sides have been working since then to give substance to that statement of intent. I mean, Crystal's been working here since before carrots were a juice. I have been working with him since he defected. I've been working here since your father started the company. JOE: A.D.A. Lowan and I have been working together since the beginning. Rebecca and I have been working together ever since the night I went into the lake. I have been working with Ensign Brooks since her husband's death. You know, sir, these people have been working since your 6:00 a.m. parade of the flags.

I am working here since

110,400 results on the web

I have been working here since

167,400 results on the web

More popular!

Joe has been working here since 1996 and his salary has not been raised a nickel.
I've been working since seven o'clock this morning.
I mean, Crystal's been working here since before carrots were a juice.
I started working since I was 16.
You been working here since day one, and you didn't know her that well?
You guys, I am working here.
I've been working here since your father started the company.
We're working since seven in the morning.

Both sides have been working since then to give substance to that statement of intent.
I mean, Crystal's been working here since before carrots were a juice.
I have been working with him since he defected.
I've been working here since your father started the company.
JOE: A.D.A. Lowan and I have been working together since the beginning.
Rebecca and I have been working together ever since the night I went into the lake.
I have been working with Ensign Brooks since her husband's death.
You know, sir, these people have been working since your 6:00 a.m. parade of the flags.