2023年初中英语语法：动词加ing做谓语情况
2023-01-25 20:41:21佚名
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动词加ing做谓语情况
做谓语时动词加ing前面必须加上be动词,形成be+动词ing(现在分词)作句子谓语，构成进行时态句子。
例如:
He is reading a book now.他正在看书.
He was watching TV when his mother came in.他妈妈进来时，他正在看电视。
They've been waiting for you for three hours.他们等你三个小时了.
