What sentence is correct? (I am going to make a cleanup this weekend.) 이번 주말에 청소하려고 해요. 이번 주말에 청소하려고 예요. I met the first sentence in this website (http://bulo.hujiang.com/app/day/sentence_kr/20130617/). But the real one I heard from the tape for it is actually the latter one. I am really confused. Could anybody help me ? Thanks!