Answered

Before I got here,I didn't understood ken's experience.But I was in culture shock since I arrive,and I am learning a new job too!Now I know what a rough time Jen had at first.Is this a correct sentence ?

Verified Answer :

Before I got here, I didn't understand Ken's experience. But I was in culture shock since I arrived and I am learning a new job too! Now I know what a rough time Jen had at first.

I would suggest not using the word "but" to begin a sentence, it is improper.. you can keep but, but it needs to state "Ken's experience, but I was in culture.."