go ----- see ----- eat ----- buy ----- have ----- take ----- am/is ----- are ----- do ----- wear ----- fall -----
去 看见 吃 买 度过 花费；拿走 是 是 做 穿 摔倒
现在（原形）
过去（过去式）
went saw ate bought had took was were did wore fell
不规则变化
