uma irlandesa que mora na Austrália deu a seguinte recomendação:
"[...] The most natural things that come to my mind are "I always try to give of my best in..", or "I always try to give the best of myself to ...", or "I always do my best in...". ('to/in everything I do'). N.B. "to give my best shot" is an American term and I wouldn't use it in formal communications."