A to hlep為什么，有be seem to的詞組嗎seem to be doing sth表示不定式的動(dòng)作和主句中seem是同一個(gè)時(shí)態(tài)，比如，He seems to be doing his homework. 他好像正在做作業(yè)； seem to do 表示不定式的動(dòng)作發(fā)生在主句動(dòng)詞seem之后，比如It seems to rain. 好像要下雨了。 rain的動(dòng)作，是發(fā)生在seem之后的； seem to have done sth表示不定式的動(dòng)作發(fā)生在主句動(dòng)詞seem之前，比如 she seems to have finished her homework. 她好像做完了她的家庭作業(yè)。finish的動(dòng)作發(fā)生在seem之前望你能采納seem后加to嗎可以加的，望你采納