do/todo/doing归纳后面跟动词原形的有:You'dbetter(not)do;makesb
do;letsb
do;havesb
do;helpsb(to)do;Whynot
Whydon'tyou
Shallwe
wouldratherdothando
;hear/watch/see/noticesb
doWouldyouplease
后面跟动名词的有:finish/keep/practise/mind/enjoy/spend/suggest+doingcan'tstopdoing;Therebe+sb
doinghavedifficultydoing;bebusydoing;beworthdoing;hear/watch/see/noticesb
doingpreferdoingtodoing;lookforwardtodoing;beusedtodoing(习惯于);payattentiontodoing;devote
todoinghaveagoodtimedoing;whataboutdoing;stop/keep/preventsb
(from)doing后面跟不定式的有:ask/tell/encourage/allow/wouldlike/need/want/expect/warn/invite/order/remind/advisesb
todo特别提醒:不能说hopesbtodoagree/learn/hope/prefer/plan/decide/choose/wouldlike/seem/invite/fail/promise/affordtodobemadetodo;what/how/whentodoIt'stimetodo;tryone'sbesttodo;can'twaittodo;Thereisnone