why not sb +do还是to do

why not sb +do还是to do why not 后面+let sb do还是to let sb do?Why not __?A let him to go home B to let him go home C let him go home D to let him to go home选哪一个? why not do还是why not to do 短词造句：encourage sb give sb support help sb(to)do sth why not do prefer sb not to do? 还是doing? why not doing sth还是why not do sth还是why not to do sth why not to do 还是why not doing why not to do还是why not doing 是advise sb.to not do还是advise sb.against Why not 后面+doing 还是to do? 是ask sb not to do sth 还是ask sb to not do sth tell sb to not do sth 还是 tell sb not to do sth 是suggest sb not to do还是suggest sb not do?或者 suggest to sb not doing?还有 advise sb not to do why not后加do还是doing还是to do? 是tell sb.not do sth.还是tell sb.not to do sth.那么ask呢? tell sb not to do sth 还是tell sb not do sth make sb do的不定式否定是make sb not do还是make sb not to do why not do sth sb放哪?