in order to 這個短語的意思是為了...用在句子中的時候，它的時態可以根據實際想要表達的要求來定。
例如，如果想要表達的是過去時的事情，那麼，句子中的其他動詞要變成過去式，而in order to 不需要發生任何變化，因此，只需要注意它後面接的動詞的形式就可以了
so that 後面跟目的狀語從句。in order to和 so as to後面跟動詞原形，in order to可以放在句首但 so as to不行。
You must speak louder so that /in order that you can be heard by all.
The doctors gave her a general checkup so as to/ in order to find out the cause of her illness.
The boy is so young that he can't go to school.
屬於目的狀語從句:從句部分是用以補充説明主句中謂語動詞發生的目的的狀語從句。
舉例：
Say it louder(so)that everyone can hear you.
大聲説，以便大家都能聽到你的聲音。
So that在目的狀語從句中可表示"為了"的意思在結果狀語從句中表示結果。
目的狀語從句:從句部分是用以補充説明主句中謂語動詞發生的目的的狀語從句。
表示目的狀語的從句可以由that， so that， in order that， lest， for fear that， in case等詞引導
目的狀語從句的謂語常含有may， might， can， could， should， will， would等情態動詞。
一些用法：
1) so … that…/ such …
該句式中重要考查的是so和such的區別。應注意以下可能出現的結構:
so nice a boy that…
such a nice boy that…
so beautiful/diligent/carefully … that…
such (fine weather/great improvement) that…
2) so that
She worked hard so that everything would be ready by 5 o'clock.
她努力工作，以便在五點前是一切都就緒。
She looked down so that she should not see his eyes.
她垂下目光，使她看不到他的眼睛。
Everyone lend a hand， so that the sowing was done in time.
該句式中主要考查so that 與其它短語的區別，如:
由於so that也可以引導目的狀語從句，同學們應特別注意從句中時態的運用。
3) so much so that
該結構用於形容詞或副詞之後，表示"到如此程度以致於"。如:
He was very weak， so much so that he could not walk.
I long to visit Beijing， so much so that I dream about it every night.
4) 注意結果狀語從句與too…gh to…， so… as to結構的不同。
5)in order(that)"以便" to the end that "為……起見，以便"
in order to+動詞原型，表示目的，時態可以是句子需要的任何時態
He got up early in order to catch the first bus morning.
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