1、1When I was young2young3Could/Couldnt能/不能4I could dive when I was seven.5Could/CouldntCouldand couldnt(could not)are the past tense forms of canandcant(cannot).I couldride a bike when I was six.6ride a bike7I couldntwalk when I was one.I couldwalk when I was two.Dont change the verb after couldor co
2、uldnt.Could/Couldnt8walk9We use when to link up two sentences.WhenI could skatewhenI was four.I could skate.I was four at that time.10skate11May _ when she wasthree.She _ when she wasthree.couldnt swimcould run12Tom _ when he was_.He _ when he was_.couldnt ride a bicyclecould play footballfive years oldfivefive13I _.I _.couldnt wash the dishes when I was seven could sweep the floor when I was sevenseven years old14What could you do and what couldnt you do when you were younger?