When you’re polyglot you see similarities between languages. In this case, french helped me a lot.
Deveria --> look a lot like the french devrait ( should ) Ser - comer are both Spanish words,no ? (to be and eat) Fajao --> i had to extrapolate from the image but it similar to the french fèves ( beans )
Sem --> you can easily understand it from the context and i saw enough Brazilian meme.