2. es

3. Ciera

4. Comen

5. Debe

6. Es

** Creo is with certainty meaning that you gotta use indicative for it, not subjunctive. Same as me parece que.

Niego : subjunctive

Es verdad que : inddecativo

No es verdad que : Subjuntivo

creo que : inddecativo

No creo que : Subjuntivo **

It's different for questions however:

• You can use both, depending on what you think or mean

  

  could use subjunctive or indecativo IN THE QUESTION