Often后加 have to 句型,要用过去式吗

Often后加 have to 句型,要用过去式吗 英文中的句型为什么要加have Does he often have to go to the doctor?为什么要加the啊`have在这里什么意思 be动词+形容词后加to+n是什么句型? 谢谢 They have many customers who often go to their shop.句型转换They have many ____ customers. 非谓语动词句型问题⒈She is often heard to sing in the next room.(动词sing前面为什么要加to?)⒉The students were made to clean the street.(东西clean前面为什么要加to?) He often listens to 是什么句型 often后可以直接加动词原形么比如often feel I have grown up可以么often feel I have grown up 可以么 often后加什么词? often后加什么词? to be句型和to have句型怎么用啊! I often watches TV ,watches 后为什么要加es 动名词和不定式后加什么单词remrember to do sth之类的句型（初二） there be 句型真主语后加现在分词、过去分词与to do的区别 Let’s后要不要加介词to?It’s time to have lunch.Let’s ——— some hamburgers.选项有：A：to have B:have We have many patterns for you to choose from?choose后为什么要加from? have/has been后接地点名词时,中间为什么要加to Everybady wants to have lunch in the garden Everybady后为什么want要加S