the mother allows允许 her son to play basketball after he has finshed his homework用allowed不可以吗
问题描述：
the mother allows允许 her son to play basketball after he has finshed his homework
用allowed不可以吗
答
allowed 不可以哦
因为 after he has finshed his homework这个从句是时态,是现在完成时态
即：现在时态中的一种,
那么主句
the mother allows her son to play basketball也要用现在时态中的一种
这里即为：一般现在时态