Ben ona aşina değilim. - I'm not familiar with that.
Ben ona aşina değilim.
I'm not familiar with that.
Onun müziğine aşinayım. - I am familiar with his music.
Onun müziğine aşinayım.
I am familiar with his music.
... Some of the species of grass that we are most familiar with ...
... becoming more familiar with space, reading lots of books. ...