他知道了

他知道 taˉ zhiˉ daoˋ

(He knew, He knows) He knows, He knew

知道 zhiˉ daoˋ

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

知道了 zhiˉ daoˋ le˙

(Knew, Know, Knowing, Knows, Now, Understand, Understands, Understood) Know, Knows, Knowing, Knew, Understand, Understands, Understood, Now know, Now knows, Now knew, Now understand, Now understands, Now understood