he can also swim句中为什么有两个动词

he can also swim句中为什么有两个动词 can he swim同义句()he()()swim? He can ——(swim ), and he can also help kids——(swim) 是He can not only swim,but also dance还是He not only can swim,but also can dance? He can swim now 同义句 He can swim.改为否定句. I can also swim 还是I also can swim I can't swim,and he can't swim（ ）选那个?A also B too C either D neither 找错John can play soccer very well and he can swim also He can swim very well改为同义句He ___ ___ ___ swim very well. soon he can swim.soon he ___ ___ ___ ___ swim.同义句 He can swim very well.(否定句） can he swim?变同意句怎么变? I'm not sure he can swim 改为否定句 he can also.还是he also can We can also swim in the sea.（改为同义句） I can swim.同义句：I ( ) ( ) ( ) swim He can ____(swim) well.