有没有keep on to do sth.的说法?

有没有keep on to do 和keep to do的说法? 保持做某事 只有keep on doing sth.有没有keep doing sth.或keep to do sth. keep sth to do有这种说法吗?啥意思? 有没有try on sth 的说法 有没有keep to do sth.这个固定搭配. 有没有keep sb on doing sth keep to do sth keep doing sth的区别 hope sb do sth 有没有这种说法?hope sb to do sth Keep+to do sth 语法：有没有keep sb do/to do sth?如果有, 英语翻译我知道有 keep sb doing sth .1 应该没有 keep sb to do sth / 或是 Ke keep有keep doing sth.keep do sth .keep to do sth .请把用法和例句留下