want sth后是for还是on

want sth后是for还是on live on 后接doing sth 还是to do sth? 是want to do sth and do sth还是want to do sth and to do sth? cooperate with sb是on sth还是in sth? 是work hard at sth.还是work hard on sth. 是send sth to sb 还是send sth for sb 是offer sth. for sb.? 还是 offer sth. to sb.? make a plan是of sth 还是for sth 是arrange sb for sth还是arrange sb with sth 是leave sth.to sb.还是leave sth.for sb. 是feed sth to sb还是feed sth for sb? 是offer sth.for sb.还是 offer sth.to sb.