have to do sth是句型还是短语?

have to do sth是句型还是短语? have to do sth 句型造句 ask的句型是ask sb to do sth还是ask sb do stask的句型是ask sb to do sth还是ask sb do sth? 提问句型 是You'd better do sth还是You'd better to do sth 关于let句型是let sb do sth还是let sb to do sth have sth.to do和have sth.to be down和have sth.down是have sth.to do和have sth.to be down意思相同,还是have sth.to be down和have sth.down相同? have sb do sth 还是have sb to do sth have sb to do sth还是have sb do sth? have sb do sth 还是 have sb to do sth? 关于not的句型(急用)是not doing sth还是not to do sth还是not do sht have nothing to do but do sth还是doing sth have fun doing sth 还是have fun to do sth? have fun doing sth.还是 have fun to do sth. 有没有have sth.to do 这个句型 是have some time doing sth. 还是 have some time to do sth. 是have fun doing sth 还是have fun to do sth? Ill help clean up the city parks是运用了句型help sb do sth 省略宾语,还是help to do sth句型省略了to have sb to do /have sb do想问一下是have sb to do sth还是have sb do sth 要权威的~