I feel so good after seeing that play, it was amazing.
Moved言いたい時, movedの前にam, so, wasが必要です。
I was so moved, I was moved, I was so moved, I am so moved.
この文は前の話だから過去形使えます。was moved, I was so moved.
Feel good - 気持ちよかった
Speechless - 言葉全然でない
Movedの代わりに上の言葉もあります。
Such a great playは全然大丈夫けれどもし違う言葉使えたかったらいろいろあります。
It was an amazing play, the play was so good, such a great play, was so fantastic
イギリス 
