类似于 used to 和一般过去时，would always 表示一种在过去经常重复但现在通常没有的习惯。和它们不同的是， would always 表示某人愿意这样做，有时表露说话者厌烦或愉悦的情绪，这也常常表明这种习惯是极端的。
一、used to
和一般过去时一样，used to 也可以用来描述过去的习惯、事实或一般性的概括，意为“曾经，以前”等，后面跟不带 to 的不定式。当需要强调重复的习惯时，用 used to，例如：
I used to love sushi but I seem to have gone off it now.He used to smoke, but he doesn’t smoke any more.I didn’t use to eat oysters but now I love them.
二、would always
Would always 表示某人愿意这样做，有时表露说话者厌烦或愉悦的情绪，这也常常表明这种习惯是极端的。
She would always send me strange birthday gifts.
她总是送我奇怪的生日礼物。
Sam and Mary would always choose the most exotic vacation destinations.Sally would not always arrive early to class. She came late once or twice.Ned would always show up at our house without calling first.Danny would not always come out with us.We would not always go abroad for the summer holidays.
与 would always 相反的是 would never，表示某人过去从未做过某事，但现在可能做了，例如：Jeff would never pay for drinks when we went out together with our friends.He would never do anything to jeopardize his career.
1. 和 would always 类似的还有 would constantly，would often，would forever 或只是would，表示动作经常发生，但是不建议使用 would，因为这很容易跟条件句和过去将来时混淆，例如：Jerry would constantly bring his girlfriend to the parties.Jerry would often bring his best friend to the parties.Jerry would occasionally bring his older brother to the parties.2. 同理，和 would never 类似的还有 would rarely，would occasionally 和 would seldom，表示动作不经常发生，例如：Jerry would seldom bring his sister to the parties.Jerry would never bring his younger brother to the parties.
与 used to 和一般过去时不同的是，would always 不能用于谈论过去的事实或一般性的概括，例如：Sarah was shy, but now she is very outgoing. (正确)Sarah used to be shy, but now she is very outgoing. (正确)Sarah would always be shy, but now she is very outgoing. (错误)
