When is the best level or learner's age to teach "used to"?
You mean at the elementary level? Do you think it suits well for twelve-year old kids?
We used to visit my grandmother every once in a while. She died last year. Now we can't do that anymore.~R
And, what about younger learners like ten years old? It depends of the learner's experience as you said, isn't it?
I think a ten-year-old would understand an expression such as, "I used to play with dolls, but I have outgrown that."
Thanks! I'll take it in count!