YOU SAID:

I managed to convince Asia not to complain to his superiors

INTO JAPANESE

私はアジアに上司に文句を言わないように説得することができました

BACK INTO ENGLISH

I was able to convince Asia not to complain to the boss

INTO JAPANESE

上司に文句を言わないようにアジアを説得することができた

BACK INTO ENGLISH

I was able to convince Asia not to complain to my boss

INTO JAPANESE

上司に文句を言わないようにアジアを説得することができました

BACK INTO ENGLISH

I was able to convince Asia not to complain to my boss