Someone quitted smoking sometime ago, yet there is still a possibility that he may start smoking again. In this case I know that I cannot say "He used to smoke 2 years ago." because that would certainly mean he is never ever going to smoke again. I remember the case that my teacher was explaining it years ago, I remember that 'used to' cannot be used, but I can't remember which tense I should be using.
✘ `Quitted" is not a word and is never used..
✓ He quit smoking 2 years ago.
✘ He used to smoke 2 years ago.
✘ He use to smoke 2 years ago.
✓ He was a smoker 2 years ago.
✓ Bob quit smoking 2 years ago.
None of these imply that he will never start smoking again.
*used to* and
use to can be confusing. They are very common phrases, are often mixed up with each other, and can mean many different things.
Use tois normally followed by a verb.
Used tonormally refers to the past. (Hence the
edat the end.)
These are all correct:
I used to smoke. ☜ I smoked in the past.
I use to be a smoker. ☜ I smoked in the past.
I am used to smoking. ☜ I know how to do it.
I'm used to my tools. ☜ I am familiar with them. I've had them for a long time.
Gloves are used to keep your hands warm. ☜ The purpose of gloves is warmth.
He was used to cook and clean. ☜ He was "taken advantage of".
Here are some tips and even an online quiz to see if you understand a little better now. :)