forge的过去分词怎么变化

例句：

1、She forged a new career in the music business.

她在乐坛上另创一番新事业。

2、 Someone had forged her signature on the cheque.

有人在支票上伪造了她的签名。

3、 Go and work for Mr Gladwell at the forge.

到铁匠铺去给格拉德威尔先生干活吧。