What is the correct form to write sentence with the word "prefer"?
Sometimes when I am reading a text, answering questions, I see expressions and questions like "Do you prefer studying? or Do you prefer to study? ". Which one is correct? Is it possible to use one or other? or Could I write a sentence with both structure?

Question

What is the correct form to write sentence with the word "prefer"?
Sometimes when I am reading a text, answering questions, I see expressions and questions like "Do you prefer studying? or Do you prefer to study? ".  Which one is correct? Is it possible to use one or other? or Could I write a sentence with both structure?

Answer

Both "prefer to do something" and "perfer doing something" are correct. No big difference.

Answer

Thank you so much for your help, Jack. In fact, I was worried about how to use the word prefer, but now I'm ok.

Answer

In short they are both correct and can be used in both structures. These are expressions usually used for comparing and contrasting.

EX: Do you prefer studying or sleeping? Do you prefer to study or to sleep?

Or you can just use it the way you did in your question.