before leaving office today,这个状语中,leaving是现在分词还是动名词?

before leaving office today,这个状语中,leaving是现在分词还是动名词?
我认为这里before作连词用，是现在分词代替I leave

清澄花草 1年前已收到7个回答举报

穿越丛林幼苗

共回答了16个问题采纳率：87.5% 举报

动名词

1年前

nbawbo 幼苗

共回答了16个问题举报

应该是动名词的，after也是这用法

1年前

HULK_23 幼苗

共回答了28个问题举报

应该是动名词跟在介词后面作状语

1年前

kissme222 幼苗

共回答了161个问题举报

before是介词，介词后的动词要用动名词形式

1年前

程三公子幼苗

共回答了32个问题举报

动名词 before 是prep. 所以后面动词用动名词
还有哦，现在好像基本上已经不区分动名词和现在分词了，统称为动词的ing形式了阿
给出上下文的说~~~~~~~~

1年前

血色威廉幼苗

共回答了2个问题举报

我觉得是现在词把....因为任何有ING的都是正在做的意思...

1年前

都去哪里了幼苗

共回答了49个问题举报

现在分词

1年前

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