我的父亲总是鼓励我在学校努力学习 的英文是

这种表示总是发生的现象，需用一般现在时，这是最基本的英语常识。据此，我译成： My father always encourages me to study hard in school.

另一稍微高雅一些的说法是：
My father always encourages me to study diligently in school.

My father always encourage me to work hard in school.
My father is always encouraging me to work hard in school.
always do sth 与be always doing这两个语法上都是正确的。不过always与进行时连用通常指带有感情色彩。而与一般式连用则不带有感情色彩。如
he always tells me to study hard
he is always telling me to study hard
第一句就是一个叙述。他经常告诉我要努力学习
第二句表示不耐烦。他总是说我要好好学习。
选哪个，随你喽

my father always incourage me to study hard at school

My father has always encouraged me to study hard in school.