I am used to travelling by air.语法 to 后面都是加原型,为什么这个是加ing形式?

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I am used to travelling by air.语法 to 后面都是加原型,为什么这个是加ing形式?
I am used to travelling by air.语法
to 后面都是加原型,为什么这个是加ing形式?

I am used to travelling by air.语法 to 后面都是加原型,为什么这个是加ing形式?
be used to do 过去常常做某事
be/get used to doing 习惯于做某事,这里的to是介词.
这句话的意思是：我习惯于坐飞机旅行了.

be used to do 过去常常做某事
be/get used to doing 习惯于做某事，这里的to是介词。
这句话的意思是：我习惯于坐飞机旅行了。请问第一个to是什么词性？还有您为什么强调第二个to是介词呢？是介词又如何呢？抱歉。我已经毕业有些年头了。按我的理解，第一个to是助动词，这个不太确定了。第二个to是介词的话，和doing构成介宾结构。...

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be used to do 过去常常做某事
be/get used to doing 习惯于做某事，这里的to是介词。
这句话的意思是：我习惯于坐飞机旅行了。

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used to do something, 过去常常做某事，可以用时间状语限定时间。这个短语意味着现在不了。
be used to do something. 被用来做某事。Coal is used to make electricity. 煤可以用来发电。
be used to doing, 习惯于做某事, be 常用现在时态，即 am, is, are.

used to do 表示过去常常做某事，而现在往往不做了
i used to get up early in the morning when i was still a hight school student.
be used to doing 表示习惯于做某事i am used to eating rice now.
be used to do表示...被用来做某事Pig Stem Cells to Be Used to Grow Human Organs?

i am going to travell to Disneyland ( ) i like mickey mouse.的翻译 i am used to.. i am used to my I am used to lonely i(am used to)(used to)swimming in cold water. I am get used to be lonely I am not used to my shape i am used to catch the eyes. I __stay up late Rellay I did't I _going to bed before ten o'clock A am used to am used toBused to am used to C am used to used to D used to used to i use和i used to和I am used to的区别和用法 Used to be used toI used to be living here .I am used to living here.为什么第一句不对? I am also what i used to be 翻译 Am I the person I used to be翻译 I’m not that I am used to I am not what I used to be I am what i used to be forever You don‘t do some sports,do you?No,I ____,but now I _____climbing mountains to keep fit.A used to ；am used to B am used to ；used toC was used to；used to D use to ；used to↓No,I used to,but now I am used to climbing mountains to keep fit. i'm used to it为什么要加am