动词to do sth 和动词不定式有区别吗答:加原形:情态动词和助动词等,如:can,could,may,should,might,must,ought,need,have,let,make,help sb (to)do sth.加不定式 want,would like,like,love,be going to,go on,hate,begin,continue,start,ask,tell,afford,agree,aim,appear,arrange,believe,care,choose,claim,come,consent,dare,decide...
to do sth.是动词不定式吗?答:hope,mean,long,learn,seek,intend,tend,manage,prepare,remember,forget,plan 加ing start/begin/keep/feel like /practice/like/allowed/pay attention to /be used to/consider +doing sth.(所有介词后面都加doing sth.)see/hear/find/watch sb.doing sth keep/prevent/stop+from doing sth ...