i could swim when i was six years old为什么用swimi could swim when i was six years old为什么用swim而不是swimming

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/24 05:50:25
i could swim when i was six years old为什么用swimi could swim when i was six years  old为什么用swim而不是swimming
x)TH/IQ(.U(HST(O,V(άPLM,*VIycד Ovv<&l^4tZl 젾s5>kh*[g Ov/L)/* j  T

i could swim when i was six years old为什么用swimi could swim when i was six years old为什么用swim而不是swimming
i could swim when i was six years old为什么用swim
i could swim when i was six years old为什么用swim而不是swimming

i could swim when i was six years old为什么用swimi could swim when i was six years old为什么用swim而不是swimming
can/could/should/would/may/might 后面是要用动词原形的

情态动词后面接动词原形,所以用swim.

could 后面接原型。swim