Answer:
2. diga
3. existan
4. habrá)? im not really sure
5. funcionen
6. llueve
7. se enfade)?
8. encuentre
9. vuelvan
10. regresa
11. vallas
12. podamos
13. tenga
I don't think all of them are right but I hope it helps.
What’s the email so it can Eva answer
Should/must
Deber means that you should/must do something