We moved into the new house last month.
→ We have lived in the new house since last month.

They started working on this project two months ago.
→ They have been working on this project for two months.

Mary began learning to play the piano in her childhood.
→ Mary has been learning to play the piano since her childhood.

He joined the company two years ago.
→ He has been with the company for two years.

I started studying English six months ago.
→ I have been studying English for six months.

They began dating each other in high school.
→ They have been dating each other since high school.

We moved to this city a year ago.
→ We have lived in this city for a year.

She started practicing yoga last year.
→ She has been practicing yoga for a year.

Linda began playing the guitar when she was a child.
→ Linda has been playing the guitar since she was a child.

I started writing my book a few months ago.
→ I have been writing my book for a few months.