Every student can't arrive late for class.中late是什么词性?

Every student can't arrive late for class.中late是什么词性?（是副词,晚地.）
People say that "an elefhant never forgets".中forgets是什么词性?（是动词,忘记.）
I don't like any of my subjects.中any是什么词性?（any,是代词,任何一门学科.）
Let's meet at half past seven.中past是什么词性?（是介词,超过.）
I like giraffes because they're very cute.中because是什么词性?（是连词,因为）
Could you tell me about your life?中Could是什么词性?（是情态动词,能够.）