Chances are you can't give a yes or no answer to the question: "Is English easy for you?" Perhaps a better answer would be: "It depends." The use of the phrase it depends can take a number of different forms:
It depends on the class.
It depends if I have enough time to study.
It depends on what type of English class it is.
This guide to the use of 'It depends' will help you use this form to give more complete answers depending on the situation.