"过去式"，"现在式"用英语怎么说

过去式

[词典] past tense; preterite;

[例句]只要拨打订票热线，所有难题都将成为过去式。

Simply phone the ticket hot-line and all that aggro will be a thing of the past.

现在式

[词典] present;

[例句]你知道这个单词的现在式是什么吗？

Do you know the present formns of this word?