"I've been working here since two months ago" [duplicate]

Solution 1:

You can, but it’s not advisable. Since has to have a specific time reference. Two months ago is such a reference, but a reader might initially be confused by seeing since followed by two months, which would normally be preceded by for. Better to write either I`ve been working here for two months or I started working here two months ago.

Solution 2:

You can't; it’s not advisable at all, it sounds like a common English-as-a-foreign language error.

Since has to have a specific time reference. Two months ago is such a reference, but a reader might initially be confused by seeing since followed by two months, which would normally be preceded by for. The correct alternatives are:

I`ve been working here for two months

or

I started working here two months ago.