过去式变否定什么时候用didn't什么时候用wasn't或weren't

问题描述:

过去式变否定什么时候用didn't什么时候用wasn't或weren't
如例句I didn't go to the park yesterday可不可以等于I wasn't go to the park yesterday

不行,go是动词,didnt表示否定过去的动作.wasnt是否定过去的状态,后面接形容词或者名词,或者是过去进行时才能用.e.g.I wasnt going to the park this time yesterday.(我昨天这个时候不是正在去公园)或者I wasnt in the park yesterday.(我昨天不在公园)