1
vote
2answers
6k views

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

Possible Duplicate: Proper usage of “since” and “from” with regard to duration of time Is “since I’m” now an acceptable alternative to “since I was”? With the Present Perfect ...
6
votes
5answers
1k views

Present perfect continuous and “for”

Why aren't you allowed to say "I have been knowing her for ten years" or "It has been broadcasting for many years"? But you are allowed to say "I have been waiting for an hour".