The last English class we wrote a report about a video named "5 techniques to speak any language"
In this report I did some mistakes:

1.- I did not write the word "English" with capital letter. I don´t know, I only forgot this rule, but in the future, I won´t do it.

2.- I did not use a verb in simple form after the modal verb "must". I wrote: "must to look" an I had to write "must look"