Many learners say this wrong π
β I am here since 2 years
β
I have been here for 2 years
β
I have been working here since 2023
Because we use present perfect with βsince/forβ when something started in the past and is still true in the present moment.
Think of it as a bridge between the present and the past.
Try writing a sentence with "for".
Then rewrite it with "since"