YOU SAID:

I am now much fluent in very Spanish

INTO JAPANESE

私は今、非常にスペイン語にも堪能

BACK INTO ENGLISH

I was now very proficient in Spain,

INTO JAPANESE

私は今、スペインでは、非常に熟練しました。

BACK INTO ENGLISH

I now, in Spain, very skilled I.

INTO JAPANESE

私今、スペインでは、非常に熟練した私。

BACK INTO ENGLISH

I now, in Spain, very skilled I.