I'd like to share flashcards with you which I found in the app "Itrvy the Cat" (for android and iOS. It is available in many languages)
I cut these funny pictures from screenshots and I got 99 flashcards (there are 100 in the app)
You will se the most frequent verbs at the beginning of the document.
I think it would be interesting to use them together with this app. Today every child has a mobile phone and learning through it is a normal thing.
I hope my work will be usefull for you too :)