permitting的詞性是什么

　　例句：

　　1、 I'd like to see the new film with time permitting.

　　如果時(shí)間許可，我想看那部新電影。

　　2、We'll have the party outside, weather permitting.

　　天氣允許的話，我們就在室外舉行這次聚會(huì)

　　3、 On the condition of market economy, this is not permitting.

　　在市場(chǎng)經(jīng)濟(jì)條件下，這是不容許的。

　　4、 Weather permitting, he would go to work on foot.

　　天氣許可時(shí)，他總是步行上班。