3个回答
展开全部
很简单的,总之就是把动词换成过去分词,再在前面加上be动词,be动词的形式根据主语的数、人称和时态作相应改变即可。
比如,I am punished today./She is punished today. 这里am与is的区别就看前面主语是谁了。
The flowers are watered today./The flowers were watered just now.这里面watered是动词的过去分词,不变,就看时态是什么了,如果是现在就用are,是过去就用were.
比如,I am punished today./She is punished today. 这里am与is的区别就看前面主语是谁了。
The flowers are watered today./The flowers were watered just now.这里面watered是动词的过去分词,不变,就看时态是什么了,如果是现在就用are,是过去就用were.
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询