他們難道不知道

他們 taˉ men˙

(Their, Them, They) They, Them, Their

難道 nanˊ daoˋ

(Do you, Is it possible, It doesn't, It's hard) Do you mean to say, Is it possible, It's hard to believe, It doesn't seem likely

不知 buˋ zhiˉ

(Not know, Not knowing) Not know, Not knowing

不知道 buˋ zhiˉ daoˋ

(Didn't know, Doesn't know, Don't know, I didn't know, I don't know) Don't know, Doesn't know, Didn't know, I don't know, I didn't know

知道 zhiˉ daoˋ

(Knew, Know, Knowing, Known, Knows, To know) Known, To know, Know, Knows, Knowing, Knew