The v-ing form used as adverbial
动词ing形式作状语
V-ing 形式由“_________”组成, 其否定形式是 “_________”, V-ing 能够带宾语或状语组成___________, 没有些人称和数改变, 但有时态和语态改变。
V-ing 形式
do+ing
V-ing 短语
not doing
(not) doing
(not) being done
(not)having done
(not)having been done


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