Study the information about be/get used to something.
  
1. I am used to something = it is not strange or new for me.

I bought new sandals. They felt a bit strange because I wasn’t used to them.
  
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Mary’s husband is often away from home. She doesn’t mind this. She is used to him being away.
 
2. After be/get used you must not use the infinitive (to do).

He is used to driving on the left.

In the phrase ‘I am used to something’, to is a preposition, not a part of the infinitive.

Sally is used to living alone.
  
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3. Remember!
 
I am used to doing something = it is not strange or new for me.

I am used to driving on the left because I have lived in London a long time.
 
I used to do something = I did it regularly in the past but not now.

I used to walk to school every day, but these days I go by bike.