动词过去式双写+ed有哪些

问题描述:

动词过去式双写+ed有哪些

stop-stopped
sum - summed
spot - spotted
man - manned
rub - rubbed
shop-shopped

skip-skipped stop-stopped shop-shopped

太多了,很多重读闭音节单词(动词)的过去式都是双写最后一个字母再加-ed的,举几个例子吧:
sum - summed
spot - spotted
stop -stopped
man - manned
rub - rubbed