Last week I helped my parents do housework 请问这句里的do是否用过去式

Last week I helped my parents do housework 请问这句里的do是否用过去式 Last week I help my parents do housework这里的help 和do是否正确 这句话怎么写问句?Oh,I helped my parents do housework. we helped Grandpa Li do housework last Friday怎样改成一般过去式的疑问句 the last is that i should do more housework for my parents.f 改错：1 .I helped my mun did housework last week 2 .I borrowed do housework 的过去式 I helped my mother do --- housework in the afternoon.I was v i play games,do some reading or do housework with my parents ()your parents do housework What did you do last week?I () () my vacation. My parents often teach me ------(do)some housework