I agree with Marcus. I have a suggestion for the sentence: "Why we face the challenge to learn the grammar?" Marcus is correct but it feels more natural to say "Why is learning grammar so challenging?" regards, Helen

You might have had a situation when you heard something that was different than you expected. Some information can help you get where you want to be. Why do we face a challenge to learn grammar? Keywords are words that lead the message in the text. Do it many times until you get it right. Read that boring book and keep going despite the resistance. You should open yourself up to other cuisines. And even though it might be hard at the beginning, after a few times you can do it with pleasure.

Sorry you have to read to the end to see what I have written - starting "I agree with Marcus" ou might have had a situation, when you heard something that was different than you expected. Some information can help you get where you want to be. Why we face the challenge to learn the grammar? Key words are words that lead the message in the text. Do it many times until you get it right. Read that boring book and keep going that despite the resistance. You should open yourself up to other cuisine. And even though it might be hard at the begining, after a few times you can do with a pleasure.