1、(to sb) (to be) sth | ~ like sth，不進行時，涉及推斷時用，意思像，似乎，看來 。
例句：You seem happy.你看起來很高興 。
【seem用法】2、to+動詞的不定式，用以緩和語氣時用，意思為感到好像，覺得似乎 。
例句：I seem to have left my book at home.我大概是把書忘在家里了 。
3、it seems | it would seem，表示不確切或客氣時用，意思為看來好像，似乎 。
例句： It would seem that we all agree.我們大家似乎都同意 。