求现在分词加ING的变化规律

题目

求现在分词加ING的变化规律
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答案

现在分词的构成方法如下 ： 一般情况下,直接在动词原形后面加 -ing.
going asking finding working being seeing printing raining standing studying speaking spelling
以不发音的-e 结尾的动词,去-e ,再加-ing. coming taking firing encircling writing becoming breathing leaving
闭音节的单音节词,或以重读闭音节结尾的多音节词,这些词的末尾只有一个辅音字母时,双写这个辅音字母,再加 -ing.
sitting running getting cutting stopping beginning planning permitting
注意：以y结尾的直接加ing