how to add 'ing'for wander?why not do

how to add 'ing'for wander?why not do How do I have to be able not to let one's thoughts wander th I wander how i wander why啥意思? 歌词i wander why i wander how i wander where is good friends do not add up what they do for each other.add How many people go to die,why do not you go to die?是什么 what...for?是不是等于why...what do...do to...是不是等于how...deal with why not sb +do还是to do / go to the great wall for a visit?a:why not ; b; how about; why not to do 还是why not doing why not doing sth还是why not do sth还是why not to do sth what,books ,want,of,do,kind,you,why,something ,for,not,to,ea