Translation of verheimlichen

Of course I have already tried, but it did not work. I will try it again. Meanwhile, here is the reason for my short emails... only one hand free at a time, see explanation in the image of me.
In plural there is no difference between the formal and the colloquial address form. Do you mean that you are using 3rd person singular form for the plural imperative? If so, I will change all entries so far.
But we learned only the general rules such as personal pronouns and articles, accents, some verbs and general vocabulary. I also love the sea and the sun, and the beautiful mountains too.