i look to others for changes.如果是的话,

i look to others for changes.如果是的话,
i look to others for changes.如果是的话,

i look to others for changes.如果是的话,
for 是介词
复不定 for、找,价,原,对,给,段,去,为,作,赞
复不定 for,即用 for 引出的不定式复合结构,也就是 for 加名(代）加不定式；找,意为找到,提供; 价,意为价格、工资；原,意为原因；段,意为时间或距离; 去,意为去某地或开往某地；作,意为作为; 赞,意为赞成(用于系表结构.） 例：It is high time for us to start.我们不该再迟延了.
The most urgent thing is for us to get the preparation done.最重要的事情是我们要把准备工作做好.
I don't think it advisable for him to study medicine.我想她学医不适合.Your parents and relatives are anxious for you to go to college.你的父母和亲戚渴望你上大学.
My home town has changed too much for me to recognize.我的家乡变化太大,简直认不出来了.
以上例句都是 for 在不定式复合结构中的用法.
Someone is asking for you on the telephone.有人找你接电话.（找）
You'd better write to me for more information about it.如需更多这方面的资科和信息,你最好给我写信.（提问,索要）
They worked in the company for 200 yuan a month.他们在这个公司干活,每月嫌200元.（价格）
How much did you pay for the second-hand colour TV?这台用过的彩电你花了多少钱?（价格）
Thank you very much for your coming.谢谢您的光临.（原因） Thank you for your warm hospitality.谢谢您的热情款待.（原因） Forgive me for being tardy.请原谅我迟到了.（原因）
I'm much obliged to you for telling me.非常感谢你给我谈了这个情况.（原因） We have boundless admiration for your struggle.对你们的斗争我们无限钦佩.（对） Listening comprehension materials are good for training our minds.听力材料对训练我们的脑子根有好处.（对）
Take the bitter medicine.It's good for you.吃下这药吧,对你有好处.（对） There is a telegram for Mr.Wang.这有一份王先生的电报.（给）
May I use it for a minute?我用一会儿好吗?（一段时间）
I followed the stealer for some distance.我跟踪那个小偷一段路.（一段距离） The ship was for Dalian.这破船开往大连.（去某地）
We are off for Shanghai tomorrow.明天我们去上海.（去某地）
The medicine is for reducing your temperature.这药是退烧的.（为……目的） After breakfast,I'll go for a stroll round the town.吃完饭我要在城里到处走走.（为……目的）
I'll keep the lighter given by a foreign friend for a souvenir.我要把外宾送给我的打火机作为纪念.（作为）
It is only meant for a joke.这只是当笑话说说罢了.（作为）
We are all for cutting down the cost of production.我们都赞成降低生产成本.（赞成）

难道是look..for

介词是词性，不一定有意思