谓语动词要发生改变,如：I go to school by car.（我坐车上学）He goes to school by car.（他坐车上学）动词的变换形式：1.、大多数动词在词尾加“S”在清辅音后发音为[s],在浊辅音及元音后发音为 [z].如：
①stop－stops [s] ; make－makes [s]
②read－reads [z] ; play－plays [z]
2、以辅音字母加“y”结尾的,要先将“y”变为“i”,然后在加“es”读[iz] 如：
fly－flies [z]； carry－carries [z]
study－studies [z]; worry－worries
3、以“s, x, ch, sh”结尾的,在词尾加“es”,发音为[iz] 如：
teach－teaches [iz]; watch－watches [iz]
4、以“o”结尾的动词,加“es”,读[z] 如：
go－goes [z] do－does [z]