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5、 含ough或augh bring—brought带来 buy—bought买 think—thought 想，认为 catch—caught捉住 teach—taught 教 fight—fought打架
6、 把eep改为ept keep—kept 保持 sweep—swept 打扫 sleep—slept睡觉
7 make—made 做 have/has—had 有，吃 can—could 能，会 fly—flew 飞，放 run—ran 跑 take—took 拿 draw—drew 画 get—got获得，变得speak—spoke 说（语言）
say—said 说（说话的内容）stand—stood 站 meet-met遇见find—found 找到forget—forgot 忘记 hear—heard听说 spend—spent度过，花费wake—woke 唤醒 come—came 来 learn—learnt学习 mean—meant意思是 am/is—was是（单数）are—were 是（复数） tell-told 告诉 go—went 去 do/does—did 做feel—felt 感觉 see—saw 看见 eat—ate吃pay—paid支付