since (EN)
前置詞、副詞、接続詞

前置詞 “since”

since
  1. 以来
    She has been living in New York since 2010.

副詞 “since”

since
  1. それ以来(一度も起こっていないことを示す場合)
    She moved to Spain in 2010 and has lived there ever since.

接続詞 “since”

since
  1. 以来(ある行動や状況が始まった時を説明する節を導入する場合)
    She has been my best friend since we were in kindergarten.
  2. だから
    Since it's raining, we'll have to cancel the picnic.