英语中的动词大多具有以下五种形式动词原形 第三单 现在分词 过去式 过去分词 beat beats beating beat beat/beatenbecome becomes becoming became becomechange changes changing changed changedcheck checks che...
英语中的动词大多具有以下五种形式动词原形 第三单 现在分词 过去式 过去分词 beat beats beating beat beat/beatenbecome becomes becoming became becomechange changes changing changed changedcheck checks che...