keep后加to do还是doing

keep后加doing。

keep doing指从开始做某事，中间不停一直做到最后。

没有keep to do 这个结构，但是有keep to sth.的结构。意思是保持，坚持。其中的这个to 是介词。相当于stick to。

keep

解释：v. 保持，处于；继续，重复；耽搁，延误；保有，留下；存放，储存；经营，管理；保鲜；保守（秘密）；遵守；记录，记载。

例句：I go swimming every day in order to keep fit.我每天游泳以保持健康。

I said I'd go just to keep him happy.我说过我要去只是为了让他高兴。

keep的常用搭配

Keep a secret保守秘密

例句：Could you keep a secret, if I told you one?如果我告诉你一个秘密，你能保密吗？

Tom was utterly indiscreet, and could never keep a secret.汤姆言行完全不慎重，从来守不住秘密。

Keep a promise遵守一个承诺

例句：You'd keep a promise and not tell?你要答应我不要告诉任何人。

Keep a promise, Find the time, Forgo a grudge.信守诺言，腾出时间，放弃怨恨。

keep in touch保持联络

例句：Let's keep in touch.我们保持联系。

I wanted to keep in touch, but when I called him he gave me the brush-off.我想和他保持联系，可是当我打电话时，他却不理我。