Eng

Do not know...

不曉得

Am not, Are not, Did not know, Do not know, Does not know, Is not, Not be, Not know, Not knowing, Unaware, Was not, Were not

(Aware, Knew, Know, Knowing, Knows, To be aware, To know)

也不知道

Did not, Did not know, Do not know, Does not know

(Not know, Not knowing, Didn't know, Doesn't know, Don't know, I didn't know, I don't know, Knew, Know, Knowing, Known, Knows, To know)