动词不动式答:动词不定式省略to的情况:1.在助动词或情态动词后:May I ask you a question 但在ought, have和be后不能省略.2.在make, let, see, watch, hear, notice, feel, have, listen to, look at等动词后(作宾补)Let me hear you play the piano.3.在why引起的某些问句中:Why not try again 4...
关于英语动词不定式答:有些动词之后只能用v-ing形式,如:enjoy, mind, practice, keep等;有些动词之后只能用动词不定式,如:afford, agree, decide, fail等;有些动词之后既可用v-ing形式又可用动词不定式,二者没有什么区别,如:continue, begin, learn, like等;有些动词之后用v-ing形式和动词不定式意义有所不同,如:try, ...