help是什么时态，may

是一般现在时，例如：

1、Falling interest rates may help to bolster up the economy.利率下降可能有助于激活经济。

2、More police officers out on the beat may help to cut crime.增加巡逻的警察可能有助于减少罪行。

3、The conference may help to focus attention on the economy.此次会议可能有助于将关注焦点放在经济上。