he tells me 他告诉我 Tā gàosù wǒ
I tell him 我告诉他 Wǒ gàosù tā
etc 等等 Děng děng
you can tell me sth about study, food, game, blah blah blah. 你可以告诉我有关学习,食物,游戏之类的事情 Nǐ kěyǐ gàosù wǒ yǒuguān xuéxí, shíwù, yóuxì zhī lèi de shìqíng
"blah blah blah" is kinda "etc"