swimming的过去式是什么went swimming和swim(swam)

问题描述:

swimming的过去式是什么
went swimming和swim(swam)

是swam ,这是不规则变化的,蛮重要的
swimming是swim的现在分词形式,没有swimming的过去式这种说法的,是swim的过去式,是swam

swimming是swim的现在分词形式,没有swimming的过去式这种说法的,是swim的过去式,是swam

swam