ever表但凡时什么词性

是副词词性，例如：

1、Why did I ever get mixed up with you?我怎么会曾经跟你混在一起呢

2、If you ever cross him， forget it， you're finished.如果你曾经跟他作过对，就别想了，你没戏了。

3、I can't ever recall Dad hugging me. Neither did I sit on his knee.我不记得爸爸曾经抱过我，我也没在他膝盖上坐过。