1.
underfed v. underfeed
过去式. 过去分词
2.
bought vbl. buy
的过去式和过去分词
3.
What was past was past.
过去的总归是过去了。
4.
the preterit(e)tense
【语】过去时(态)
5.
Fe pa du ki ad urba. She was going to town.
她(过去)是去(往)城她(过去)正去往城里.
6.
He has Been to New York.
他到过纽约。(过去曾经去过)
7.
He had been to New York
他到过纽约（过去曾经去过）
8.
In the past some minority nationalities entangled themselves in bitter feud, with one nationality attacking another, followed by retaliating attacks.
有的过去打冤家，你打过来，我打过去。
9.
Draw upon past experience to...
凭借过去的经验去做。。。
10.
She looks thinner than before.
她看上去比过去瘦了。
11.
That was a past story. Let bygones be bygones
那已经是过去的事了。过去的事就让它过去吧
12.
Of, relating to, or characteristic of a time in the past.
旧时的过去的，与过去有关的带有过去特点的
13.
the distant horizon, past
遥远的天际、 过去
14.
Ten years flashed by.
10 年转眼过去了。
15.
Stand clear to let the car pass.
站开，让车子过去。
16.
Stand aside and let us pass !
站开，让我们过去！
17.
He says that once she was thin.
他说，她过去很瘦。
18.
Passing of a period of time
（时间的）流逝，过去