buy 过去式：bought 过去分词：bought buy-bought-bought
hear 过去式：heard 过去分词：heard hear-heard-heard
keep 过去式：kept 过去分词：kept keep-kept-kept
lend 过去式：lent 过去分词：lent lend -lent-lent
give 过去式：gave 过去分词：given give-gave-given
go 过去式：went 过去分词：gone go-went-gone
grow 过去式：grew 过去分词：grown grow-grew-grown
lose 过去式：lost 过去分词：lost lose-lost-lost