Verb conjugation of "crumble" in English

The billing of additional working hours is not justified, since it was our request to download the software and wait for the new version. They have admitted the error of the translation.
You can return the favor and help me too. We will acquire the new language together. I like to learn Spanish. Since high school, I have learned much more but it has been more than 20 years ago.
You look very pretty in your image too. Is it you in the picture, because you are as beautiful as a photo model, I thought you took it from a magazine. In Poland, women are very pretty generally.