I've warned her countless times.

我警告过她无数次了。

My mother and I conflicted countless times over the years, but gradually came to see one another as real human beings with faults.

多年来，我和母亲之间发生了无数次冲突，但我们逐渐认识到，彼此都是有缺点的人。

My mother and I conflicted countless times over the years, but gradually came to see one another as real human beings with faults and talents.

多年来，我和母亲发生过无数矛盾，但我们逐渐将对方视为既有缺点也有才华的真实的人。

I've flown countless times.

我做过无数次飞机。

An egg can draw countless times, a love can.

一只鸡蛋可以画无数次，一场爱情能吗。