`1`. I don’t stay/ doesn’t stay at home.
`2`. We don’t wash/ doesn’t wash the family car.
`3`. Doris don’t do/ doesn’t do her homework.
`4`. They don’t go/ doesn’t go to bed at 8.30 p.m.
`5`. Kevin don’t open/ doesn’t open his workbook.
`6`. Our hamster don’t eat/ doesn’t eat apples.
`7`. You don’t chat/ doesn’t chat with your friends.
`8`. She don’t use/ doesn’t use a ruler.
`9`. Max, Frank and Steve don’t skate/ doesn’t skate in the yard.
`10`. The boy don’t throw/ doesn’t throw stones.
`→` I/You/We/They + don’t (do not) + V
`→` She/He/It + doesn’ (does not) + V