YOU SAID:

I was supposed to do the dishes fifteen minutes ago and haven't gotten around to it yet.

INTO JAPANESE

私は15分前に皿洗いをするはずだったが、まだ手が回っていない。

BACK INTO ENGLISH

I was supposed to do the dishes 15 minutes ago, but I haven't got my hands on it yet.

INTO JAPANESE

私は15分前に皿洗いをすることになっていたが、まだ手に入れていない。

BACK INTO ENGLISH

I was supposed to do the dishes 15 minutes ago, but I haven't gotten them yet.

INTO JAPANESE

私は15分前に皿洗いをすることになっていたが、まだ手に入れていない。

BACK INTO ENGLISH

I was supposed to do the dishes 15 minutes ago, but I haven't gotten them yet.