These are the most common mistakes from Spanish speakers. I make almost all of it :( https://pronunciationstudio.com/spanish-speakers-english-pronunciation-errors/

By far the most common one I have seen is not using capital letters when they are needed in written English, because they are not used the same way in Spanish. In English you capital letters for languages, nationalities, religions, days of the week and months of the year. In Spanish these are all written in lower case so it's quite a common error.

Pronunciation is common. Saying english words with the same spanish pronunciation as used in cerveza for example.

Well the one you posted are very basics. We (I) usually make some mistakes regarding the use or not use of articles for instance: The people instead of people, defining countable and uncountable names (much/many), etc....

Hi Leticia, My name is David and I'm looking for people who help me with english. I need to do conversation and to be corrected. Please contact me if you would like to learn spanish, we could make a language exchange addme if you want!