plan计划 ，want想要， hope希望， wish希望， would like想要，这几个是表达意愿的词，后面要接动词不定式作宾语，而非谓语动词中动词不定式表示将来或未完成的动作。plan to do sth. want to do sth .hope to do sth. wish to do sth. would like to do sth.表示动作还停留在意愿上，还未去完成，所以都要接动词不定式。