从前的英文：
previously
formerly

参考例句：

Long since; long ago
从前;往昔

I used to keep a diary.
我从前记日记。

Doctors used to bleed people when they were ill.
从前医生常常给病人放血.

To the right is the elegant Winter Palace, former home of the czars
右边是优雅的冬宫，是沙皇从前的住处。

In earlier days, the church proscribed dancing and card playing
从前，教会禁止跳舞和玩牌。

Formerly the coal was dug with picks and spades.
从前用镐和铁锹采煤。

We are not insulated from the real world the way we were.
我们可不像从前那样与现实世界隔绝了。

Her mother used to keep track of every penny she spent.
她母亲从前把自己所花的每一分钱都记下来。

Hearing this Hoover said,Sir,once,a man was driven to distraction by a barking dog
胡佛听后说:“阁下，从前，有人被一条狂叫的狗叫的心神不宁。

Thomas Atkins,sometime vicar of this parish
托马斯·阿特金斯,本牧区从前的牧师.

previously是什么意思：
adv. 预先；以前

The land previously cultivated returned to forest.
以前开垦过的那片土地现在又成了森林了。

Many of the previously detected systems are “full”.
许多已被检测到的星系都是“满”的。

You are a little previous in learning English.
你在学习英语上有点过急。

He was judging by previous dinners.
他是照从前吃过的晚饭来猜测的。

the indiscriminate policies of the previous administration.
前任内阁令人困惑的政策

formerly是什么意思：
adv. 以前，原来

The word was formerly applied to various kinds of applications to a court.
该词从前用于向法院提出的各类控诉书中。

The office that formerly constituted the first of the seven canonical hours.
申正经正式构成天主教七段祈祷时间第一段的祷告时间。

The company formerly belonged to an international banking group.
该公司以前隶属于一个国际银行集团。

A large rowboat formerly used by British customs officers.
英国式敞开划桨船英国海关官员从前使用的一种划桨大船

A furnace formerly used in glassmaking for calcination of materials into frit.
熔炉一种以前用在玻璃生产中的火炉，用于原料到玻璃质的锻烧