請教高手： What I learned is...

Are the following Grammarly correct? Can someone use " is " and "can " in the first sentence after a paste tense of "learned":

What I learned is that the process of transforming ideas into reality can be extremely difficult without conscious and deliberate effort.

 

I know the following is correct: 

What I have learned is that the process of transforming ideas into reality can be extremely difficult without conscious and deliberate effort.

所有跟帖： 

• Both are grammatically correct, depending on their contexts -rancho2008- ♀ (138 bytes) () 10/28/2015 postreply 23:55:22

• 學到的東西是過去學到的所以用learned，但過去學到的東西現在還在還適用所以用is -abookl- ♀ (0 bytes) () 10/29/2015 postreply 05:54:06