'used to something' vs 'used to doing' and Present perfect

the meaning of them are completely differant, aren’t they? what state we must use in each?

He used to wake up at 6 AM in the morning (but now he does not)
He is used to waking up at 6 AM in the morning (he is accustomed to waking up at 6 AM)

Hope this explains the matter.

Very good, Alex!

Edit: AM+in the morning=tautologous :wink:

Thanks !

Couldn’t agree more.

I used to excersise three to four times a week, not anymore.

I am used to go on vacation with my sister family, I can not feel as happy as with her.

Is it clear now?

Actually in your last example it should be “I am used to going on vacatio with…”.

Subject + used to + infinitive (no preposition) = what you did repetatively in the past and what you no longer do.

e.g. She used to eat croissants when she was not celiac.

Subject + conjugation of to be in present tense + used to + gerund = what you are accustomed to doing in the present (although this can essentially touch the past and future).

e.g. She is used to eating croissants. She has done it for 2 years.

All the best. Profesor de inglés vía Skype